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Bull. Hist. Chem. 24 (1999) 1

THE 1998 DEXTER AWARD ADDRESS "FROM AN INSTRUMENT OF WAR TO AN INSTRUMENT OF THE LABORATORY: THE AFFINITIES CERTAINLY DO NOT CHANGE" CHEMISTS AND THE DEVELOPMENT OF MUNITIONS, 1785-1885

Sr . Mpf, Unvrt

I dpl pld nd hnrd t b th r d th prph f n f pbltn, tn rpnt f th xtr Ard. I ht dd tht I fr th "Cnè r r l pdr nn l ht tn b hn I nfrd (2"f ph rt. It prtnt tht I hnr tht I hd bn nntd, fr I rnz tht I hv rt b th f n f h ttn b h bn thn f "prdl n" rrdn th h h pld n prtnt rl n th trjtr f n tr f htr. I lft th fld fr bt fftn r rrh n th htr f htr. Ornll, I t thr b th lfln frnd (nd hr ntrtd n th pt f h r fr hh h bt f th n n bjt vr dffrnt fr th h n—nltl htr nd th f fnt tr f htr (. Mr rprtn—bt th th n vr, rrh n th fld l ntxt f th rltn h bn ht nrth hp f rt t th dx I hv ht t tp npt f fxd nrl p tht hv d ntrt n ntprr rnh n t bt hd nt t rtllrph nd nrl trtd h hlrl ttn . M rnttn was tra- tn, t lt t th t I b ditional and "internalist" (to n td. And th f use the terminology f th f th tp h bn l t. Althh I ld t n htr pr than on v ttntn t l the ntrtn btn nd ntttnl ntxt f htr nd thr dn rt rr hn I rt f th phl n. It brphl n h thrfr ll th r fr th tnr f Sntf hrtnn t hv r rph, I tll t rh hnrd n th t frl fd n th f nl . fnt rprtn thr. r xpl, I rbr h ttn n th ttl t ll ln vr f tl, hh I hv l Sr H. Mauskopf 2 ll. t. Ch. 24 (

l—nd pn b—nn lt nd lnth pbl In th pt dd r , th hlrl ttn h tn b rt n "pdr nn." vr, hl prvd ntbl. Stl h d n prtnt n rrhn th S , I hd rd p f t trbtn t th td f bllt n th htnth n t f ltr rt hd dlvrd drn th r h tr, ntrn rnd th thtn nd bllt pnt n Spn (8806, nd dtbl ntrnll t xprt, njn bn (8. rt h bn prdn th frt r f th nntnth ntr. h ltr prhnv td f th rnztnl hn n r th b f rtrn t th htr f htr th rnh npdr dntrtn nd thnl n th 80. M rnttn n h r t prvnt n npdr n drn th lt h tnd t th ntxt—n ht th prblt— tnth nd rl nntnth ntr, vn prtlr f rt prtn ht n Spn, btr ttntn t th rl f ht nd ntf trnn fr htr thrht th htnth ntr. h (. h nptn f thn l hrnt rrh ld t trn t rt ppld htr, prt rp n th htr f npdr ptzd b lrl h ltr htr, fr h hd bn nvtd t th rnt n dvtd t t t th bnnl t Spn n 8 t th htr t th dt f th n f ICOEC (0 nd rnzd b r. rnd l Artllr Shl n Sv. Aftr rxnn hnn. On rlt th pbltn f th frt rt ltr, I ntd tht thr r fr f fft l drn t f td n npdr (. tr pr t hd bn dvtd t th htr f n pdr. h d t rtrn, th rnd ntr If trt h bn d n th td f htnth t, t h nn rtl n "pdr nn." h rlt nd rl nntnthntr ntn ntrn n rtl, "Chtr nd Cnnn," pblhd n npdr, th n hrdl t b d bt th Technology and Culture (. h n f n th h dvlpnt f rn hh xplv n th ltr nn tr f npdr ld b t vr nd h tnth nd tntth ntr. hr hv bn t tnthntr hl nd phl nl f n drttn n th rl dvlpnt f l pdr nd t xplv rtn nd, r rntl, pdr bt nthr h bn pblhd (2. Std b frrd thrh th nntnth ntr. A t t th t f td prtpnt, hrd , n Mndlv n Cntr fr th tr f Chtr hlpd nd n ntn, nd ffr hnn (nd t ntt th td, nd rnt fr th l Md n rnt n th v f Wrld Wr I, M nd th tnl Sn ndtn hv n hld ntt phttd htrl ltrtr n th bld t pr th n th ntrt f b th prd. n nd dntrtv hdl. h nrl htrl prblt bhnd td Whn I bn td n th 80, I fnd th f ntn th tn f h n nd rft rnt hlrl ltrtr n th dvlpnt f n ntrtd—nd tthr—btn th lt r tn nd, prtlrl, n th rl f ntt n th tr f th htnth nd th lt rtr f th nn dvlpnt, t b pr, t th lt. hr , tnth ntr. h bjt f ntn , f r, f r, rtntn l A History of Greek Fire prt f h r nrl prblt nrnn th and (4. t, th ttl pl, th b n nd thnl f trl n th rtl r.. nntrt n th dvl nd rl drn prd M htrl td f ntn hv fd n thr t h vr lttl t bt pt00 dvlpnt. ltr prpllnt, ppd t thr ltr Anthr prtnt td fr th rl drn prd, f ( f, rt, xplv hll, t. r vln r dtntl rltd t f, ll Ballistics . h trdtnl ltr prpllnt np in the Seventeenth Century (. t fr th r rnt dr—"bl pdr"—th nnt xtr f ltp prd, thr vrtl bn f hlrhp, th tr, lfr, nd hrl. Althh thr, r xpl hnrbl xptn prvn th rl b thr ll v trl (l pt hlrt r ndrd nbr. h nld Mlthf td f vr ltr prpllnt fr t t t, th frt rll ttpt t dl th th lt htnthntr rnh r rvl t npdr "nttn," hhl prbl f ltptr ppl (6 nd Gllp d ntrtd fr f lll, d b trtn ttn th n f vr rl n th Régie des Poudres, th nntrtd ntr nd lfr d, dvrd b rnh npdr dntrtn, n h trl Chrtn rdrh Shönbn n 846 (. trl trt (. ll t hv rt nd vrd ndtrl ftr n th nntnth nd tntth ntr (4, bt ht t ntbl ttrtd Shönbn nd h ntp Bull. Hist. Chem. 24 (1999) 3

raries' attention was the property of guncot- Proust's epigraph: "From and instrument of war to an ton. It was, weight for weight, more powerful than - instrument of the laboratory, the affinities certainly do powder and burned completely without producing not change." Proust, more than any other chemist, at- and, apparently, without fouling . Yet it took forty tempted to develop gunpowder chemistry into a useful years to develop an effective -based smoke- military application; the context of the quotation was less powder as a military . What I want to fo- his assertion that the saturation proportion between char- cus on is a part of that story: the work of the English coal and saltpeter, determined in the laboratory, was pre- munitions chemist, , who tried to "tame" cisely the same as that in a gun (16). guncotton for use as a military propellant in the 1860s. Abel achieved part of this objective by 1865 and ap- Another issue concerned the relationship of changes peared to be very optimistic about developing a smoke- in the propellant to guns and (and vice versa). less military propellant from guncotton that would re- It was the introduction of an English-derived powerful place gunpowder; he abruptly abandoned this research gunpowder into France in the early 1820s, which was in the late 1860s and instead embarked on a massive soon blasting test out of commission, that led study of the function of gunpowder in guns of all cali- French investigators to concentrate on studying the bers. physical parameters of gunpowder in order to control its ballistic force. By the late 1850s, attention was turned What follows is a "systemic" approach that I have to major changes in all aspects of guns: the materials found to be of heuristic value in conceptualizing the re- out of which they were made, the mechanism of load- lationship of science to the development of military pro- ing and, above all, their power. It now became more pellants (15). Of the three such systems (two "physi- important than ever to determine and control the rate at cal" and one "social") I shall focus on gunpowder to which the ballistic force of the propellant was released illustrate the physical systems. and built up in gun bores. Although French investiga- tors had been moving towards this recognition earlier in I. h St the century, it was an American, T. J. Rodman, who seems to have been the first to determine the relation- The first system is that of the themselves. It ship between powder grain (or ) size, burn rate, includes the physical and chemical properties relevant and gun bore pressure. What enabled Rodman to come to their functions as military propellants. In the case of to his insight was his invention of an ingenious device, gunpowder, it was through the pneumatic chemical dis- the Rodman gauge, to measure pressure as the projec- coveries and the general reconceptualization of chemi- tile moved down the gun bore under the impulse of gun- cal substances and reactions during the Chemical Revo- powder explosion. Rodman also made important im- lution that the first approximation to the modern under- provements in cannon casting and was particularly con- standing of the chemistry of gunpowder came about. cerned with controlling pressure in his large, smooth- There was initial optimism that chemical understanding bore "" cannon. The Rodman gauge and itself would fairly directly to improved gunpow- Rodman's general principle, that the size and shape of der. But by the first part of the nineteenth century, it powder grains had to be adapted to the of the became apparent that physical characteristics of gun- gun in which they were used, were rapidly accepted powder— the size, shape and density of powder grains, throughout (17). the manner in which wood was converted into charcoal, In 1857, at almost exactly the same time that Rod- the way in which the three components were "incorpo- man was developing practical means of measuring and rated" together"—were at least as important as purely controlling gun bore pressure, a more theoretical and chemical considerations in determining the way gun- laboratory-based advance in determining explosion pres- powder functioned. "Function" here is relational. So sure and other physical parameters was being made in my second system is the relation between the propellant . Its authors were the chemist Robert Bunsen and the instrumental complex in which it operates, in and the Russian artillerist and munitions chemist, Leon this case, of course, the guns and their projectiles (bul- Schischkoff. The basis of their determination was an lets, cannon balls and shells). Here a number of differ- unprecedentedly detailed analysis of the products of ent issues arose. One was whether military propellants gunpowder explosion and a calorimetric measurement functioned the same way in field guns as they did in of the heat produced from it. From this data, they ap- laboratory test tubes. The issue is brought out well in plied thermochemical considerations, only then recently 4 Bull. Hist. Chem. 24 (1999)

come into use, to determine the temperature of the ex- ever, there ensued something of a disciplinary dialectic plosion and, from that, the pressure and the theoretical in the investigative tradition concerning munitions in work (18). Neither Bunsen nor Schischkoff developed the course of this century. During the French Revolu- this research further, but it was hailed as "the model for tion, chemists were in its forefront; but the Napoleonic all subsequent research on this subject (19)," and taken regime ordained that all gunpowder administrators be by all munitions investigators as the watershed in the graduates of the École polytechnique. From that time scientific understanding of explosion and . through the Franco-Prussian War the primary disciplin- ary orientation was physical rather than chemical, even The two systems outlined so far have dealt with the though such distinguished chemists as Gay-Lussac and physical materials of military propellants and their rela- Pélouze served on the Comaé consultatif of the powder tionship to guns and projectiles. However, there is one administration, established soon after the Restauration other system to which I would like to give some atten- (23). I would suggest that this change in research ori- tion: that dealing with the social contexts of the scien- entation represented the intersection of two systems in tific investigators themselves and the nature and "style" my mode of analysis: the physical system of propellant of their investigations. It would involve such param- and gun (the crisis engendered by the introduction of a eters as national scientific tradition, scientific and tech- new type of more powerful powder ca. 1820, mentioned nological formation, motivation for investigation, pa- earlier) and, in the social system of the scientific inves- tronage/employment, and relationship to the military tigator, the requirement of an École polytechnique back- propellant manufacture. My renewed and reoriented ground in . It should also be men- interest in Proust was focused on these parameters, and tioned that contemporary American munitions investi- I have since extended my purview to the French, En- gators, such as Rodman, received analogous training at glish, and American investigative traditions in the eigh- West Point and carried out research in a style similar to teenth and nineteenth centuries. This third system is that of the polytechniciens. illustrated with a brief overview of the development of munitions research in France and in these cen- The period after the Franco-Prussian War was turies. marked by the collaborative activities of the chemist, Marcellin Berthelot, with the polytechniciens, Emile With the appointment of Lavoisier in 1775 as one Sarrau and Paul Vieille. This great trio of French inves- of the four régisseurs des poudres and de facto chief of tigators brought the chemical and the physical traditions the Régie des poudres, the reformed French gunpowder into synthesis through the union of thermodynamics and administration, scientists were introduced into the in- thermochemistry, in part because of the pioneering pa- dustry as they had already been in other industries such per of Bunsen and Schischkoff. It should be noted that as dyeing and (20). Until then, gunpowder munitions production and research were solely a state making was a craft in France and elsewhere; the de- activity and, for much of the century, under the admin- tailed rules for gunpowder production and testing that istrative control of the Ministry of War (24). had been laid down in France in 1686 were, to the best of my knowledge, generated without scientific input. In England there appears to have been no compa- Although Lavoisier's best known activity as a régisseur rably coherent tradition of institutionalized scientific was his attempt to develop saltpeter production, he also involvement in munitions prior to the appearance on the instituted tests concerning many aspects of gunpowder scene of Frederick Abel (1827-1902). A charter student production: which wood source produced the best char- (and one of the most esteemed) of W. A. Hofmann at the coal for gunpowder; which process of trituration and Royal College of Chemistry, Abel left the college in 1851 incorporation (stamping mills or edge runner wheels) to take a post as Demonstrator of Chemistry at St. was best, etc. (21). He also instituted what Gillispie has Bartholomew's Hospital, . Two years later he termed "scientific administration (22)." This included secured the position of Lecturer in Chemistry at the the scientific training of all future commissaires des Royal Military Academy, , upon the retirement poudres, the directors of French powder mills. One re- of Faraday. Founded in 1741 to train cadets in cipient of this training was E. I. Dupont. and engineering, the Royal Military Academy had insti- tuted a scientific and technical curriculum in the 1770s The institutionalization of science in the French and had some distinguished faculty, such as the math- gunpowder administration survived the vicissitudes of ematician and ballistics expert, Charles Hutton; but, to French politics throughout the nineteenth century. How- the best of my knowledge, Faraday was the first Profes- Bull. Hist. Chem, 24 (1999)

sor of Chemistry. Faraday had delivered an annual settled into his position when the post-Napoleonic course of lectures on chemistry and related subjects to détente gave way to the . In this first multi- the cadets from 1830 to 1851 (25). Abel moved to the national war in forty years, the changes in artillery were Woolwich and soon began to carve out a new very apparent, as the opening lines of the official report professional niche in mu- of an American military nitions as Scientific Ad- observer testified (2: visor to the h ntrdtn f th (1854), a position soon ln n t fr hll elevated to "Chemist of hrzntll,bth fr the War Department lnd nd rv, (26)." th tndn t n r th lbr When Abel moved nd f th rfl, th to Woolwich, "there was v r some uncertainty as to his dftnfr ll duties (27)." There did ll r, n exist a Royal Laboratory b ndrd th at Woolwich dating back ttld pl nd prt f ll th l to the seventeenth century tr pr f Erp. (28), in which, after 1783, (Mrvr, n t the manufacture of mili- tpt bn d b tary powder at the govern- vrl f th Er ment powder mills was pn pr t dpt supervised (29). In the th rfl prnpl t late eighteenth and early th hvt rtllr. nineteenth centuries, ex- These changes "spurred periments very similar to England into action...to the contemporary ones of revolutionize the whole Lavoisier and Proust were field of artillery (33)" carried out at the Royal during the rest of Abel's Laboratory under the di- career. rection of William Congreve (1743-1814) to Institutional ameliorate the quality of changes in the British gunpowder, which had military establishment sunk to a deplorable level also began in the mid- 1850s with the establish- (30). In the words of . W. Abll Congreve's student (31): ment of a consolidated War Department. By the hrh h tt prtl rrh nt th late 1850s, the continued tumultuous international scene, nftr f npdr nd h blt t nt hn Cnrv hd trnfrd rth pdr combined with concern over the rapid changes in artil- fr n f ntr lt t rld tndrd. lery, led to the enlargement of the facilities of the gov- ernmental powder mills at (34) and to The French certainly shared this positive view of Brit- the establishment of ongoing committees to investigate ish powder in the post-Napoleonic period. However, it both the new guns and their requirements: does not appear that the investigative activities at the in 1858, the Ordnance Select Committee, subcommit- Royal Laboratory were pursued after Waterloo. I cer- tees of which studied gunpowder and guncotton; and, tainly know of nothing in Éngland before the late 1850s in 1869, a Committee on Gunpowder and Explosive Sub- comparable to the investigative tradition of the French stances (35). Abel either served directly on the com- plthnn of the period. mittee, as he did on the Committee on Gunpowder and The early 1850s were certainly prpt fr throughout its existence, or he served in an ntt to develop a career in munitions. Abel had scarcely advisory capacity as Chemist of the War Department.

6 ll, t. Ch. 24 (

IL Abel and Guncotton vnnt f Sn (AAS. rdtn bn b Mr. h rnt nd C. f Strt. Abl drbd h ntr nt th fld f nttn (6: pt fvrbl rprt l th n fr th Erl n 86, by desire of the Secretary of State for AAS tt, td n rn nd lhr hl War, I entered upon a detailed investigation of the lnd th l bt ft nd tblt f n n manufacture of guncotton, the composition of the ma- nttn, In ft, thr n xpln t th terial when produced upon an extensive scale, its be- havior under circumstances favourable to its change, Strt ftr n ftr prdtn f nttn and other subjects relating to the chemical history of nd (42. A rlt f th ptv nd n this remarkable body. tv dvlpnt, Abl t up th td f nttn Whn Abl t p th nvttn f nttn nd, n th d 860, prfrd th t prhn ltr prpllnt, t hd lrd tnd lt t v nd dtld xprnt p t tht t. Intll, dd f vr hrd htr n t dvr h hrd th pt f th AAS tt bt n 846. f fvrbl bhvr n th fld th fblt f btttn nttn fr npdr. xd th rprt f dtr xpln t prd In tr f d f nl, thr r hl tn t, ldn t prhbtn f nftrn nd ln fn th dptn f nttn ltr ttn. h tn f th tblt f nttn prpllnt tht prtnd bth t t trl ntr nd th f th tt prtl prtn. A f r f t t fntn n th t f prpllnt nd n. Abl tr Shönbn dvr, nd ftr t vrnnt rrh prrl fd n th frt f th hl hd bndnd th nvttn f nttn fr l ln. It nvlvd ndrtn f th hl n tr nd hd vn bnnd t prdtn, thd tr f th trl nd f th n t prt nd f prdn ht prd t b pr nd tbl n nr prt nd tblt. Althh t rnzd ttn dvlpd b n Atrn rtllr ffr, rl n tht ntrlll frd b pr f Wlhl n n. n n rfnd h tp n th ntrtn th th rl f tr, nd tht hhr d prdr fr n nttn: h d rvn f r f ntrtn prdd r xplv trl, ttn (ln n f rn fr txtl nftr thr rt nrtnt nd ndrbl ntrvr th b trl, hh h tpd n xtr f th t h n hl vrt f ntrlll x trnt rl ntr nd lfr d fr frt td nd h tbl th r. h lt b ht hr. Aftr prlnr lnn, th dfd vl f pl prtn fr nttn. In Enlnd rn bjtd t rnnn tr bth (n tr t hd b ptd tht thr r thr fr f fr t lt thr , drd, nd fnll rd n ntrlll, rrpndn t th ntrdtn f n, ltn f pth nd trl (. h r t, r thr nt f ntrtn n th lll. Gnt ltnt prdt pprd t b rrbl nfr nd tn, th t hhl ntrtd fr, n ft tbl (8. In 8, n n btnd lv fr th trntrlll. h thr fr r dtnhbl Atrn vrnnt t tblh ftr fr th pr b thr dffrntl lblt n thrlhl xtr. dtn f nttn. Althh ppd b vr, th nl was hllnd n th ntnnt, rtllrt, n n dd, b th rl 860, n nd l ll ld rt lt th rl 880, rn th rht t nftr nttn n Atr hrtl bfr h dvlpd dr (4: nd fr th dptn f nttn nt th Atrn r Very different formulae have been suggested to rep- tllr rv. It t th nt, hn "..t resent the composition of the nitro-products derived ndrd dfntvl ttld tht Gnttn ld from , and particularly the composition of bfr ln b ntrdd nt th rv n pl f products of maximum and minimum . These npdr, fr rtllr prp (," tht th A products were, moreover, obtained by processes dif- trn vrnnt prttd n n t nt fering at the same time both as to temperature of re- h thd t th rth (40. Althh th rth hd action, concentration of acids, and the nature of the thr n rlr xprn th jr xpln t sulpho-nitric mixture employed. Therefore the results nttn ftr, th r prd th n n were not susceptible of any general interpretation. prvd nttn nd th pr t ffrdd t r Abl brbd t th Enlh hl v f ntr pl npdr (4. n n hlf t En lll nd tfd hlf tht n n pr lnd n 86 t rprt n h prdr t blrb dr prdd dtnt nd tbl hl btn, bn tt f th rth Atn fr th Ad trntrlll. t th v (nd th tblt f n n prdt hd bn hllnd b nbr f Bull. Hist. Chem. 24 (1999) 7

continental researchers, the most formidable of whom Abel discovered, was the presence of partially oxidized was the French chemist, Jules Pélouze, whose analysis organic impurities present in the . It was the de- of guncotton signaled a lower level of nitration than that composition of these to which Abel assigned the cause indicated by Abel's formula for trinitrocellulose (44). of the instability even in Von Lenk's product. To re- Abel argued that the results obtained by Pélouze were move these impurities, Abel recommended a final wash- the outcome of incomplete nitration of the cotton, ei- ing of guncotton with an alkaline carbonate. ther because of an insufficient period of acid digestion, Even more important than the chemistry was a the use of too weak an acid or an insufficient amount of physical procedure instituted by Abel: pulping the cot- acid, or choice of a low quality cotton. As an ton before nitration "according to the method commonly xprnt r, Abel showed that subjecting the employed for converting rags into paper (46)." Because less highly nitrated to a second acid digestion of the tubular structure of cotton fiber, impurities sur- raised its weight to the level Abel had obtained for gun- vived even the most rigorous washings; by destroying cotton. At that level, the product was far more stable this capillary structure and agitating the pulp in a large than the French and others had claimed. Nevertheless,

h pprt f nn nd Shhff fr "On th Chl hr f Gnpdr"

Abel admitted that even he had not achieved complete nitration; there was always a small residue of lower- volume of slightly alkaline solution, an exceptionally pure and stable guncotton was obtained. Abel's pulping level nitrocellulose products. It was to these that the procedure became standard for the rest of the century. French attributed guncotton's dangerous instability, es- Moreover, if immersed in water or impregnated with pecially upon exposure to light and heat. Abel, in fact, moisture, guncotton seemed all but indestructible and found the very opposite; indeed, the addition of dilute certainly safer to handle and transport than gunpowder. (a less highly nitrated cellulose than guncot- ton) actually seemed to promote stability "probably be- The question of guncotton's stability was very im- cause the fibres are partially sealed, or in some other portant but only a part of the larger issue of whether way mechanically protected (45)." Of more concern, guncotton could be substituted for gunpowder as a mili- 8 Bull. Hist. Chem. 24 (1999)

tary propellant (47). In the mid 1860s, that certainly fin, stearine, or india rubber to control the speed and remained the ddrt of military study of the mate- violence of detonation. This had been successfully tested rial. But, regarding the functioning of guncotton in the in small arms and but "the experiments upon this field, the main problem was the rapidity and force of system of preparing cartridges have not been pursued guncotton detonation. Von Lenk had attempted to con- for the last four years (54)." Abel also mentioned a gun- trol its rate of bum by twisting skeins cotton diluted with sugar and saltpe- of guncotton around hollow wooden ter which had shown "considerable cylinders. Although at first very success" in "repeated trials," and promising (48), this soon proved to "Shultze powder," devised by a Prus- be ineffective in guns (49). However, sian artillery in the mid 1860s the development of the pulping pro- by nitrating wood shavings or sawdust cess and of procedures to dilute gun- and mixing the result with saltpeter. cotton with more inert substances (e.g. However, Abel characterized this lat- less highly nitrated forms of nitrocel- ter as an "imperfect kind of gun-cot- lulose or even cotton) (50) seemed to ton," that was "scarcely bidding fair offer new possibilities for controlling to compete in uniformity of action the force of guncotton by converting with the excellent gunpowder now the pulp by pressure into solid masses manufactured for breech-loading rifles of any suitable form or density, as was (55)." done with gunpowder (51): By 1868, then, Abel seems effec- Some results, hh r dttd b tively to have ceased experimentation th t ptl nrn, on guncotton as a substitute propel- hv lrd bn rrvd t, n th lant for gunpowder. Research did con- tt r f xprnt hh r n prr, th th b tinue for developing other military jt f ppln th thd f uses, for example, in bursting shells, rltn...t th rdtn f n torpedoes, and blasting agents. What ttn t f fr fr rtllr pr had caused him to abandon so precipi- p. It rrnnt n fr t tously a research topic that had looked bl fr ll r h l df so promising? Such accounts as there flt prbl, hh b nd are of Abel's research claim that he rd pprhn prft l abandoned research on guncotton be- tn. cause he was unable to get it under This optimistic scenario for guncotton complete control, especially concern- as a military propellant was taken from ing its rate and temperature of burn- the second talk Abel presented to the ing (56). Although this is true enough, members of the Royal Institution in I dbt tht th alone explains Abel's dn 1866. There is a third in this series en- abrupt cessation of research. However, titled "On the More Important Substi- Abel himself gave an explanation in a comprehensive tutes for Gunpowder," given in May, 1872. The disheart- account on munitions and explosives research delivered ening mood of this one regarding guncotton is sounded to the British Association for the Advancement of Sci- in the opening line (52): ence in 1871 (57): No progress has been made since 1868 in th ppl A vr ddd dvn hd bn d trd th tn f xplv nt, thr thn npdr, t fl plnt f nttn n fld n b rtllr prp. fr th Gvrnnt Ctt n Gnttn d Abel noted that even the very promising cartridges for t xt n 868 nd f th xprnt n th b small arms sporting guns were "wanting much in uni- jt, hh r thn pndd, ll th r formity" although they were free from smoke and gun ltn t th plnt f nttn n ltr ll r, hv nt bn rd, t nl b fouling (53). He did suggest an improvement: compress- th Ctt n Explv, t h th frthr ing guncotton pulp under pressure and impregnating the nvttn f th ttr h bn ntrtd, h compressed mass with an inert material such as paraf- hthrt bn fll pd th th r d t prtnt nvttn rltn t npdr. Bull. Hist. Chem. 24 (1999) 9

Under the auspices of this committee, Abel himself had Paul Vieille. By the end of the decade, variants (some- returned to focus his research on gunpowder. Over a de- times with ntrlrn well as guncotton) had been cade, starting in 1868, in tandem with Andrew Noble, a devised in all European countries and in the United polymath in gunnery and munitions, Abel pursued re- States. Abel himself came out of retirement to devise search on the function of gunpowder in guns of all cali- one of the best, "," in collaboration with James bers that was the most comprehensive ever carried out Dewar. The age of gunpowder gave way to that of high- (58). explosive, . But in the late 1860s, gun- powder itself was very much a technology undergoing The context for Abel's return to gunpowder research transformation and improvement. Abel's disparagement lay in the developments of the decade before, associ- of Schultze's powder in comparison with "the excellent ated with T.J. Rodman and with Bunsen and Schischkoff. gunpowder now manufactured for breech-loading rifles" These offered researchers unprecedented opportunities certainly indicates that Abel saw gunpowder in this light. to understand and control both interior and exterior bal- Therefore, to interpret Abel's abandonment of guncot- listics through the determination, measurement, and con- ton research as simply a case of failure to control it as a trol of the ballistic force of gunpowder explosion. military propellant is to miss the real advances that had Guided by the scientific paradigm of Bunsen and been and were being made in its principal competitor, Schischkoff and employing Rodman's gun bore pres- gunpowder, in its systemic relationship to changes in sure data and an improved version of his pressure gauge gunnery. Although gunpowder did lack the attractive (the crusher gauge), Noble and Abel carried out sys- feature of smokelessness, these advances had made it tematic and comprehensive chemical and physical tests. superior to guncotton in most other ways. Corrobora- As Abel himself stated (59): tion for this view is found in a popular lecture by Abel Wll, t bt th t tht dn rn t on "gun cotton" in 1873 (62): th bjt n Ar, nd nn n Grn, Enlh. n r btrrd rlv n th t Gn ttn n b d r ntrllbl fr ll tr, nd t t r n rnt t prv np r prp, bt hv nt t bn bl t t dr, nd t dvn th nld rrdn t t ffntl t ll f t bn d th n d tn nd th ndtn t b flflld fr brnn t r f nfdn n rt n. h ttpt d fr ndr bttr ntrl. p t th prnt t t drt t tn hv nl bn prtll fl n th llt n In order to overcome the challenge of approximating nn, nd thr ppr n prpt htvr f r field conditions of a large gun bore in the laboratory, tn t ffntl fr n lrr n. the investigators made use of an "explosion apparatus" I hv hr dr rprntn dffrnt nd f designed by Noble. They also did comparative tests in npdr n n , nd hr r l pn guns of all to tabulate the total work realized f th dffrnt drptn d fr hv rtllr. per lb. of powder for every gun, charge, and description nt r th ll rn f pdr rp of powder in the English service. From this tabulation, rntd th nnn pdr n nvrl . hn bn t bld lrr n, nd ftr t it was possible to deduce the velocity of any standard th lrrrnd pdr ntrdd fr in any standard large gun (60). As for the pdr t n h n. dr brn rpdl n practical impact of their work (61): prprtn t th z nd dnt f t rn r h rlt f thr [bl nd Abl] lbr, t , nd th fn pdr fnd t t njr nt n, t prd h lrbrnn fr l pn th b n, lthh hd thn nl f npdr thn th hh hd fnd fvr n t p t th 00pndr Artrn n. W n 80 nd rlr. h prdtn f th n tp drd hd tn rt trd hn pd f pdr hrtrzd b rdl btn fr tht ll rn t th lrr rn bt rpd xrzd frrhn nfln vr ht prr d n dvlpn th z f r r t b rrdd th rrt fr f bltp n tllr, nd t fnd nr t p fr rn ntrtn, f pdr t pllt r pbbl nd pr f p dr — tht t , nvrtd pdr nt In the evaluation of technological change, there is, I hh brnd, prtvl pn, vr ll think, a natural tendency to read backwards from some hn ntd n th r, bt hh, hn ntd n ex post facto state of affairs. In this case, it would be hr f 80 t 20 lb., tll brnd vr rpdl n the supplanting of gunpowder by a guncotton-based mili- th n, nd prdd nll n ndl v tary smokeless powder. In fact, this began in the mid- lnt tn, hh t drbl t drt. W after the first one, "," was developed by r tln f bldn vr h br n thn

• 0 ll. t. Ch. 24 (

the 35-ton gun, which requires a charge of powder n 8 th n ld bl t xplr "dbl" weighing 120 lbs., and we shall therefore want a much l pdr (ntrlrnntrlll b, rlt tamer powder for those guns. I am consequently pretty n n th nvntn f "blltt" hrtl ftr ll certain that, as far as big guns are concerned, gun brthrh. cotton has no future. rr t plt prn, n ld hv t The propellant-gun-projectile system: to ftr n nl f th thr t tlnd bv: military . A lrd pld, n th 80 nd th fntn f th npnt l pdr n 880, thr xtd rt fr nttn hr t ltr rfl nd n, th hlln f nftr hrtrt f ln t ttrtv: n nttn (th ft prbl r nt pltl prpllnt fr prtn. In ddtn t Shltz lvd n th 80, nd bv ll, prhp, th l pdr, bt thrt thr ptn f plpd n nd prfnl ntxt f Abl plnt Wr ttn th xdzn nt h pt r br Off ht. Abl rtnl nt pltl ntrt, r btbl dlnt nd bndn nt r, fr nt n h h f rrh bjt (6. lll, hrl r lfr, nd , rn r prf fn, pprd n th rl rt. n rl III. Towards Smokeless Powder bl nh fr ltr bt rvd th prtn ll nh t b rll fl (68. A d In nln, I t tht t f nl lr t thnll nl t th rl f l prtn th n tht hv bn pt frth n th prdn prt pdr f th 80 nd rl 880 tht f th trn f th ppr ld b xtndd t th rvltnr d tr btn t nvntn nd th dvlpnt f th vnt f l pdr n th 880 nd 80. h rhp. In th ntr, th trntr fnd lt h n b flld th pf xpl bl. td f rl n rd, hrn d, t. The propellant system: guncotton to smokeless th 880, dnd fr l pdr powders. Abl hd dd n prfn nd tblz dvlpn n th ltr th th pprn f n nttn b h thd f plpn th trl bt prfl brhldn, rpdfrn rfl, nd hn hd pprntl d h rrh bfr h hd n. Al, th lbr f ltr ll r was grow- hvd rlbl ntrl f t bllt fr n th l ing smaller as the projectiles became lighter and more tr n. h plhd b l ll b lntd fr r pr trjtr, nttn lldn xtr f nttn nd l hhl n r prfl prpllnt thn npdr. h, th trtd fr f ntrlll n tbl lvnt ndr dvnt f prfl, nnfln, l p hh prr (64. h rltd n "pltzn" th dr b ntnt (6. Alrd n rn, ntrlll nd th dtrn pltl t fbr l pdr bd n pr d hd bn dvlpd, ntr. Althh ll th frt t d n pr n f hh (rèr pdr v d rlt n dn ltr l pdr, h th Chpôt rfl nd ntnd t b ttd ntl t nt tht prdnt r ntxt. h nfln f t prdd b ll dr (0. rlr dvlpnt n ll rn vld: ( vr The system of the scientific investigators: research nr lldl pdr prdd "prtn p style of Paul Vieille. A ntnd rlr, l ll dr" n th rl 880, bt hh ntprr (8484 rdt f th École polytechnique. brvr rt, "h rnh ltr thrt t thn jnd th rp f nnr f th npdr rl nt f thr rlt (6." (2 h nvntn f rv, hr h rd ll t th Depot [later llld b th Arn, hn Wl tt, n 80, Laboratoire] central des Poudres et Salpêtres th El n h t fr trl fr hh t fhn th Srr, nthr polytechnicien, nd th th ht, prft bllrd bll. Cllld lld f Mrlln rthlt, h hd d ldn rl n prxln (lldn hvd b bjtn x ntn rrh nd rnztn ftr th rn tr f prxln nd phr t ht nd ntn pr rn Wr (. h hrtrzd ll n r (66. h Arn ntn ht, Chrl "nnr nd xplv xprt" n ntrt t d Mnr, pld nntn btn th prdr ht l Mndlv. th ntrt xprd fr n llld nd ll fr prdn n th tp f l pdr h dvlpd: ll l pdr, hh h rntl bn rtrtd b lln t hll nhn xplv rn (6. ( nll, thr Alfrd bl n xtr, hr Mndlv rhd fr hl vntn f ltnzd ntrlrn bltn xplv hnt (2. I hll nld b xpndn bt ll. t. Ch. 24 (

n prptv brvtn. I ld r tht EEECES A OES ll rrh, ftn rrd t n tnd th Srr, rprntd th n tthr f vrtll ll . S. . Mpf nd M. . Mh, h Elv S f th rrh trdtn f ltr ntn drbd n: Orn f Exprntl hl rh, bv. It th lntn f th rnh phlt 40, hn pn Unvrt r, ltr, M, 80. trdtn f th plthnn ltr nnr. t 2. . rt, "Cnè r r l pdr nn," t l blt n th rrh f dn nd f bl . ph. h. t dhtr ntrll, 8, , 0. nd Abl, ll th thrhl trdtn f n . S. . Mpf, "Chtr nd Cnnn: .. rt n nd Shhff, nd f rthlt. nd Gnpdr Anl," hnl nd Cltr, 0, , 8426. h nth f rrh thdl x 4. . . rtntn, A tr f Gr r nd plfd b ll nvntn f th "bb lrtr" Gndpdr, W. ffr, Cbrd, 60. ntl, (bb lrétr n 88. Entll rfn ll h pblhd trl r n frr nd nt f bl "xplv pprt (," t npdr n th rl drn prd: . S. ll, Wp pld b ll n th rl 880 t td t n nd Wrfr n nn Erp, hn pn tll th xpln nt nl f bl pdr bt l Unvrt r, ltr, . f nttn. Crtl t th td nthr r . A. . ll, llt n th Svntnth Cntr: A Std fnnt d b ll: t th rhr , hh n th ltn f Sn nd Wr th frn rn h d t r xpln prr, h tthd pll t Enlnd, Cbrd Unvrt r, C brd, 2. rrdn dv tht ld ndt prr hn 6. . . Mlthf, "h rnh Crh rr fr Sltp thrht th r f th xpln (4. At th tr rdtn, 64," hnl nd Cltr, vr t, ll rrn t prhnv td , 2, 68. f th htr f ntrlll nd ht prvd . C. C. Gllp, Sn nd lt n rn t th End t b th l td f th nnr n hh xpl f th Old , rntn Unvrt r, rntn, v f ll tp tll brnd (. , 80, Ch. .6, 0. I ld hzrd tn fr rn fr th nhbtn f hlrhp n d Althh th xt rt ll t t th dvl ntn. It h t d th th prd tht h d pnt f l pdr rn hrdd n ntd dn f rl drn ltr htr: tht tr, t ll tht ll f th nvttn pld f th "ltr rvltn." Althh ltr htr thr prt n ldn h t dr . lltrt th, n hv drd ntnl bt ht th "rvl I hll nd b tn fr th t rnt f th vr tn" (r, ndd, hthr t nl rvl f td dvtd t th brnd f th rtl tn, thr h bn rnt vr th nrl pnt nvntn (6: tht, lthh th ntrdtn f frr ntrl t th rl d ltr trnfrtn, thr d h xprnt [th th bb lrtr] d vlpnt hd lrl rn t r b th nd f th pld rrltn btn th dvlpnt f pr vntnth ntr nd nt t ndr jr r f vn xpln nd t hrtrt f hn ntl th nd hlf f th nntnth ntr. tht btn: t ptn nd t trl n, ntn t l hv bn tt (nd h hp. ll th h nttn nd thr trll nntrtn thnl n th prd. h ntrlll hh nrll hv fbr tr vrl, n thr thn, th dvlpnt f th tr xpldd n ld vl th h n xtr rl f n nd nrltd thnl n th rpdt t rndr pbl n ltr n. prdtn nd prvnt f ntn. nvd tht nttn ld b ptbl t 8. . . Stl, "Mt nd ndl: njn b brn t drt pd ftr hvn bn pt nt n, nhrd Elr, nd th llt vltn," h ffntl pt fr. h ht h dd n nl nd Cltr, 4, , 4882. "ltnzn" t b n f vltl dlvnt, . h t rnt . rt, vr t Énlpéd hh ld ftrrd b lntd. h trl, éthd: nrt d rér d dr n th fr f thn plt, hd pd f btn t lpêtr pr l tnnr d lArtllr (8, tht ld b rltd b dfn thr [th S. Olh, rnz, . plt] thn. 0. "Gnpdr Stn," Intrntnl Ctt fr th tr f hnl. nt n ppr r pr ntd t th tn t th 6 ICOÉC tn n dpt. . . . hnn, Ed., Gnpdr: h tr f n In trntnl hnl, th Unvrt r, th, 12 Bull. Hist. Chem. 24 (1999)

6. Mntn hld l b d f th pnrn 24. h t nt nt r: E. Srr, "t r l b n Enlh pdrn: . Wt. Gunpowder, rv d dr t Slpêtr," Mrl des Poudres government, and war in the mid-eighteenth century et Salpêtres, 1894, , nd E. rtx, "Aprç [l trl St, ndn}, dll r, htr r l Srv d dr t Slpêtr," Wdbrd, Sffl nd htr, Y, . Mémorial des Poudres et Salpêtres, 1894, , 2. 2. S. . Gr, h Orn nd vr f th rt 2. S . A. . . , "h Mltr Cntxt f Ch trtd Orn Explv, h.. h, Unvrt tr: h C f Mhl rd," Bull. Hist. Chem., f Wnn, Mdn, S. . rn, Gnt 1991, 11, 640. rd pd vr hndl. tn t Sl dr: h vlpnt f tr r dtl nrnn rd ppntnt, . A. lll Mltr Explv, 842, h.. . , Ed., The Correspondence of Michael Fara- h, rn Unvrt, 88. day, l. I (88, Inttt f Eltrl Ennr, . h hhl xplv nttn, nl lldn nd ndn, . thr l hhl ntrtd fr, nlbl n lhl 26. tl fr btr b . Spllr, J. Chem. Soc. Trans., nd thr. 1905, 87, 60 l Sr Sdn , Ed., Dictio- 4. S E. C. Wrdn, Nitrocellulose Industry, 2 vl., . n nary of National Biography, Sth, Eldr & C., n trnd, Yr . rdl, Pioneer : dn, 2, l. , 6. 0, l. 2, 6. The Making and Selling of , Unvrt f 2. O. . G. , The : Its Background, Ori- Wnn r, Mdn, WI, 8. gin, and Subsequent History, Oxfrd Unvrt r, . r brnd n th htrrph f thnl, ndn, 6, l. 2, 4. hr pprntl hd bn W. E. jr, . . h, nd . . nh, Ed., The ptn f "rdnn ht nd t f tl," Social Construction of Technological Systems: New Di- hh, hvr hd bn blhd n 82 th lt n rections in the Sociology and History of Technology, MI bnt (f tnt r, r. MCllh, r, Cbrd, MA, 8. pnnd ff. (, ibid., l. , 66. 6. f. , tnt . 28. r brf nt, Cl. Sr . W. W. rl. "h . S S. . Mpf, "r frd t dn: h l brtr, Wlh," in The Rise and Progress Sntf Std f th hl Chrtrt f Gn of the British Explosives Industry (III Intrntnl pdr n th rt rt f th ntnth Cntr," n Cnr f Appld Chtr, Whttr & C, n . . hnn, Ed., Gunpowder: The History of an In- dn, 0, 0. ternational Technology, th Unvrt r, th, 2. Wt, f. : W. . Crft, "Wll Cnrv (4 6, 2828. 84, Exprntr nd Mnftrr," ICOEC 8. . nn nd . Shhff, "On th Chl hr Cnfrn, dpt, 6 (npblhd pr f Gnpdr," trn. E. Atnn, London, Edinburgh txt, p 2. vrh Mll (Knt r rd n and Dublin Philosophical and Journal of Sci- Wlth Abb Mll (Ex n 8. ence, 1858, 4th r, 15, 486 frt pblhd n 0. On rlt th dptn f n n f prpr 8. h ppr f nn nd Shhff dtld n hrl n ld rtrt, pprntl td b n S. . Mpf, "rdn Chtr nd h n th htlr hrd Wtn. th Éxprntl Std f Gnpdr," prntd t th . Crft, f. 2, p 6. Wrhp n "h tr f Chtr," Aprl , 2. Cl. . lfld, Report on the Art of War in Europe in 6, bnr Inttt fr th tr f Sn nd 1854, 1855, and 1856, Gr W. n, rntr, hnl (n pr. Whntn, C, 86, , . lfld br . . Uppnn nd E. vn Mr, Troia; sur la poudre, les f n ffl ltr n nt b th Srtr corps explosifs et la pyrotechnie, trn. E. rtx, f Wr. nd, r, 88, 462. In h thrttv r, O . O. . G. , Artillery: Its Heyday and Decline, Ar r Gttnn, The Manufacture of Explosives, 2 vl., hn, dn, C, 0, 82. Whttr nd C., ndn, 8, l. , , trd 4. . Évrn nd W. Crft, "h l Gnpdr th xprnt "phrn. tr t Wlth Abb: h ld Arhl f Gn 20. f. . pdr Mnftr," n hnn, f. , pp 8 2. f. , pp 4. . 22. f. , pp 666. . h nt f th Ordnn Slt Ctt (860 2. r G tvt, M. Crlnd, Gay- 86, th rprt f th tt (8686 nd Lussac: Scientist and bourgeois, Cbrd Unvrt th rprt f th Ctt n Gnpdr nd Éxpl r, Cbrd, 8, 88. nvlvd n v Sbtn r t b fnd t th l Artllr rrh nrnn nbr f dffrnt pt f brr, Old l Mltr Ad, Wlh Ar pdr: rfnnt f ltptr, nl f pdr nl. h Ctt n Explv Sbtn d t ptn, td f flnt (th b. l fnl rprt n 880. hr l nthr tt ntrntl n ttn th bllt pndl nt n nttn n th rl 80. n rn, ll n th htr f th nnn. Bull. Hist. Chem. 24 (1999) 13

6. . A. Abl, "rh n Gnttn: On th Mn 4. . A. Abl, "On nt rr n th tr f r ftr nd Cptn f Gnttn," Phil. Trans. pd Sbttt fr Gnpdr, " Proc. Roy. Inst. Gr. Roy. Soc. London, 866, 156, 2. Brit. 1862-1866, 1866, 4, 62. G prr n th n . . A. Abl, "St f Mnftr f GnCttn br ntrlzd nttn rtrd rtn t vr rrd t n th Iprl Atrn Etblhnt" "On rpd dtntn. th Cptn, nd rprt, f Spn f 0. h hd bn dvlpd b th pdr r t Gnttn prprd t th Atrn Gvrnnt Strt [Mr. rnt] fr rtrd fr prt Wr," Appnd I nd t . . Gldtn et al., n n. Abl dd nt t hv n nd Alfrd bl "prt n th Appltn f GnCttn t Wrl dvlpnt f dnt f. 4, pp 62626. rp," prt f th hrthrd Mtn f th . f. 4, p 626. rth Atn fr th Advnnt f Sn, 2. .A. Abl, "On th r prtnt Sbttt fr Gn 1863, 8. pdr," Proc. Roy. Inst. Gr. Brit. 1870-1872, 6, . 8. . A. Abl, "Mrnd th rfrn t Exprnt . f. 2, p 8. A ntprr rtllr ffr n prr brn pn th Mnftr f Gnt rzd th prbl fll: "A r f xprnt tn," Appndx III t f. , pp 42. rrd n n 86, t Wlh, n ffd t h . . A. Abl, "On th Chl tr nd Appltn tht nttn, thn nftrd, nt tbl f Gnttn," Proc. Roy. Inst. Gr. Brit., 1862-1866, fr rtllr prp. h rt ll vln f t 1864, 4, 24. tn, nd rpdt f t ntn hn nfnd, n

40. In ft, ftr n xpln dtrd th zn t S th hbr f n, rndrd t xtrl dtrtv rn, th ppnnt f nttn n th d nd th t th p. Exprnt r d th v t Atrn rvrtd t npdr. rn, f. 2, pp dnh th dtrtv nr f th nrtd 6. h ntnd t t n hll. n th btn f th ttn, bt fr th r 4. f. , pp 6. rrd t, t pprd tht n rdn t xplv 42. . A. Abl, "rh n Gnttn — Snd M fr, nd dnhn th dtrtv fft, t pr r. On th Stblt f Gnttn," Phil. Trans. Roy. prplln nt lrl rdd, nd t Soc. London, 1867, 157, 884. fr th t ddd t v p th d f pln t 4. . ll, "hrh r l trftn d Ctn" fr rtllr. It h, hvr, tll n pprtr n (88, trn. . . rnd, Smokeless Powder Nitro- xplv fr prtn prp, thh I nt r cellulose, and the Theory of the Cellulose Molecule, hn tht hn d f h trnth t t b njr Wl & Sn, Yr, 0, 8. Wrtn n th 80, t th n, n rt prrt vr npdr, Or Gttnn ntd tht bth th rlr trntr rrd hrd httn, prvd fr t, thh ndbtd pnd thr nd tht f ll hd bn pplntd b bnft r fr t frd fr nd fl thr f Edr ptltn x ntr pnd n." Cl. A. àCrt hr, "GnCttn Appld t Gttn, f. , l. 2, pp 66. ltn," [tr: n 0, 80], J. Roy. United 44. hrtll, 00 prt b ht f pr lll ht Service Inst., 1871, 14, 444 ( 42. t nr 8. n nvrn t trntrlll 4. f. 2, pp 8. h rfl r Enfld nd Sndr. (C6O. In tdn n n pr, lz At jt th t, tt r ndr t nvrt zzl nd Mr hd fnd x nr n ht f ldr t brhldr: . . bbtt, British Small nl .8 nd hd nd frl ndtn Arms Ammunition, 1864-1938, . bbtt, ndn, , lr lvl f ntrtn (C 246O 8 , 2O. Abl hd Ch. 2. fnd n nr f ht rnn btn 8.8 nd . f. 2, pp 8. 82.6 . Abl, f. 6, pp 0608. 6. Gr, f. 2, p 6 rn, f. 2, p . 4. f. 42, p 208. . . A. Abl, On Recent Investigations & Applications of 46. f. 42, p 2. tnt n th dt fr 86. h Explosive Agents (AAS tr, At, 8, ntd tht Abl ntptd b thr r b Edntn nd l, Ednbrh, 8, 20. n nd hn nn: "Sl dr: hl Shpph, n h xllnt rtl n th vltn f Mxtr nd Chll r Sbtn," prntd l pdr, rt tht Abl "xprntd t t tr f Sn St Annl Mtn, "Sn Wlh [8668] th rtrd blt p fr nd th vlpnt f Mntn," 4. nn prd nttn frd fr brnz fldn, bt th nr f th Crnh ltn dr C. fnd lttl nrnt, thh th rlt r rn, f. , p 0. hd f th btnd th n n rtrd," 4. Abl ntnd tht th plpn prdr hd bn "h Evltn f Sl dr," . Mil. Serv. Inst. dvlpd n nntn th xprnt n bttt US, 1896, 18, . n nttn fr npdr ltr prpllnt 8. A. bl nd .A. Abl, "rh n Explv — f. 42, p 2. rt I (86 nd rt II (880 [pblhd n th Phil. 48. Abl, f. , p 2. Trans. Roy. Soc. London], n Sr A. bl, Ed., Artillery 14 Bull. Hist. Chem. 24 (1999)

and Explosives, hn Mrr, ndn, 06. S tr rt, prhp th frt h n th htr f d Mpf, f. 8. rn ntn. . . A. Abl, "h Mdrn tr f Gnpdr," [A 6. Shpph, f. , p 4. S Gttnn, f. , l. tr lvrd n th r rd ll, Mnhtr, 2, pp 262 fr drptn f t f th: É.C. nr 2, 8], Science Lectures for the People: pdr nd .. pdr. Science Lectures Delivered in Manchester, 1877-78-79. 66. rdl, f. 4. Ninth and Tenth Series, hn d, Mnhtr 6. C. E. Mnr, th vlpnt f Sl .., nth Sr, p 8 (ntr , pp 02. dr," J. Am. Chem. Soc., 86, 18, 8280 rn, h hvr rdnn d n th Crn Wr td f. 2, p. 88. th ntxt fr th rn f th nvttv pr 68. Mnr, f. 6, pp 82882 l Wrdn, f. 4, r. rdn th ntrdtn f lr rnd n l. 2, Ch. 8. pdr fr hv rdn, Abl rt: "h th 6. Mnr, f. 6, pp 82824 l Shpph, f. frt vr lr pdr hh ntrdd n Enlnd , p 4. h ndn f n tp f nnr l fr hv n, bt vr lr rnd pdr hd jt th hn n drtl plld th rth ltr prvl bn ntrdd n Ar, ndr th n thrt t rn th rh fr l pdr f th pdr, nd h lrr pdr, f pr n 886 nd t nvlv Abl n th rh. S th d t hp, l f Arn rn, dptd bt r t th bl rd Off: SU 68, "Expr th t n nd r." (p 2. At th ntl dr fr Aprl 88 ." In n lt nd f th tl, Abl dd thr r tn t tr, Abl brtd th Sprntndnt f th l Gn dn th pdr rtrd t vd "vprr" pdr tr, Wlth Abb, fr nt lln h nd t ft " h" n th b f th prjtl t t th ttn flt thr: "I rrt tht d ntrl th thr dtrtv fr f th hr n nt r t ntn t ffrd flt fr th vr lr n. (pp 242. rn t f th xprnt d th v t In n 8 ddr b bl, h rdtd dn rtn hthr l pdr fr hn n bn "th frt prn h xprntd n th fft ttnbl, bjt hh rfrrd t jntl f z f rn, nd prpd prt pdr" nd t nvtt." Abl t Sprntndnt, l Gnp rt tht nn nd Shhff xprnt " dr tr [W. . bl], At , 88. jtl rn n th t prtnt hh hv bn 0. Shpph, f. , pp 4 rdn t d n r bjt." bl, f. 8, pp 8, 6, rp Gttnn, f. , l. 2, p 2, ll rnl tvl. l pdr d f bth pr d nd 60. bl nd Abl, f. 8, rt I, pp.20420. nttn. 6. MjrGnrl Sr C. Cllll nd MjrGnrl Sr . . . Mdrd, " vr ntf d l ll, 84 dl, The History of the , l Ar 4," Rev. Hist. Sci., 4, 47, 8404. tllr Intttn, Wlh, 40, l. , 2 2. , f. 46, pp . lnd Abl t ll n th . h nt n tht, "h dvr d n rrd. rpt t th prpllnt, pld th ddtnl xp . I hv nt t fnd vdn f drt ffltn b rn nd n rltn t bllt n nrl, n tn th t. ft b d t hv brht bt rvltn n th 4. h rltnhp btn bl rhr nd th ptd prnpl f n ntrtn, th r ntrnt d b th rnh plld t b l ndrtd n th ntr." . Chln: " rhr, rr, d l n 62. .A. Abl, "Gn Cttn." [A tr lvrd n th nl d tèr xplv t prftnn pr l n ll, Mnhtr, n Wdnd, v M. rthlt, t t t tllnt pl pr l br th, 8], Science Lectures for the People: Fifth n d tèr xplv t dn l xprn Series of Science Lectures delivered in Manchester; 1873, xt pr lrtllr d rn, n rn." Traité hn d, Mnhtr, 84, 6. théorique et pratique des explosives modernes et 6. Abl hd nt bndnd hp fr dvlpn nt dictionnaire des poudres & explosives, E. rnrd t C, tn prpllnt fr n ltr rfl nd, lt th r, 88, 2d d., 2. d80, tll pldn fr frthr rrh: . . ll, "Ètd r l d d btn d tèr Progress Report of the Committee on Explosives Sub- xplv," Mémorial des poudres et explosives, 8, stances, with Appendices. 1st April 1876, r Mjt 6, 26. Sttnr Off, ndn, 8, 4. 6. f. 0, p 402 l . Mdrd, "l ll t n 64. Inlbl ntrlll: 68.2 lbl ntrlll, vr," Mémorial de l'artillerie française, 86, 60, 2.8 prffn: 2,0, ltnzd n t thr. A. n° 2, 2. Mrhll, Explosives, J. & A. Chrhll, ndn, , 2, 2d d., l. , 24. h th rlt f n xtrnl nl n th pr nd rp r l ll. t. Chem. 24 (1999) 15

AOU E AUO with a common theme of his fascination with continu- ities in scientific thought and the interaction of scien- Professor Seymour H. Mauskopf has been a member of tific traditions. Since being named the first Edelstein the faculty of the History Department at Duke Univer- International Fellow in the History of Chemical Sciences sity, Durham, NC 27708, since 1964, becoming full and Technology of the Chemical Heritage Foundation professor in 1980. His research interests have spanned in 1988-1989, Professor Mauskopf has served as an ad- widely, from chemistry and medicine to psychology, all visor to CHF and a coordinator of many of their special programs.

SMISOIA SUY GAS

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