Bull. is. Cem. 11 ( 79 In consequence of this decision, many of the references in the index to volumes 1-20, 1816-26, of the Quarterly Journal of interleaved copy bear no correspondence to anything in the text Science and the Arts, published in 1826, in the possession of of the revised editions, the Royal Institution, has added in manuscript on its title-page Yet Faraday continued to add references between the dates "Made by M. Faraday", Since the cumulative index was of the second and third editions, that is, between 1830 and largely drawn from the separate indexes of each volume, it is 1842, One of these is in Section XIX, "Bending, Bowing and likely that the recurrent task of making those was also under- Cutting of Glass", which begins on page 522. It is listed as taken by Faraday. If such were indeed the case, he would have "Grinding of Glass" and refers to Silliman's Journal, XVII, had considerable experience in that kind of harmless drudgery, page 345, The reference is to a paper by Elisha Mitchell, dating from the days when his position at the Royal Institution Professor of Chemistry, Mineralogy, &c. at the University of was still that of an assistant to William Brande. Carolina, entitled "On a Substitute for WeIdler's Tube of Safety, with Notices of Other Subjects" (11). This paper is frn nd t interesting as it contains a reference to Chemical Manipulation and a practical suggestion on how to cut glass with a hot iron . M. aaay, Chl Mnpltn n Intrtn t (11): Stdnt n Chtr, n th Mthd f rfrn Exprnt f ntrtn r f rh, th Ar nd S, iis, M. aaay as eoe ou ages o is ece wok o cemica oo, 82. maiuaio, o a accou o e meos o cuig gass wi a o 2. iae commuicaio om Ms, , Aeso, 6 uy 8. io. is iecios ae auae o e youg cemis, ecause ey . , Yn,tr ntrl hlph nd th Mhn ae aw ou io a miueess o eai, wic aoe ca make l Art, o. 2, oso, oo, 80, . 820. em o ay use a ye e as omie oe ecauio, wic I ae 4. Ao,, "oices esecig ew ooks", hl. M,, 82, ou imoa i cuig age ues, ias, ec, a o o makig 2 (r. 2, 8-66, e io oo o. I sou e eae o a eess aey isie i . Ibd., . 646. ayig. I i is sae, i e cause o iae a ew imes aou e 6. Ibd., .6 ue, aog e ack wee e iisio is o e mae, a a o o . Ibd., . 6 wae u uo e so, a sime acue, wiou sie aws, wi e 8. Ibd., . 666. oaie, . Ao,, "Cemica Maiuaio &c", trr Gztt nd rnl f th ll ttr, Art, Sn, &, 82, 22 (l 2, Faraday did not, however, include this tip in the third edition. 424. Another of these later references occurs in Section XIII, 0. Ao., "Cemica Maiuaio &c", Quart. J. Arts Sci., "Crucible Operations - Fusion - Reduction", which begins on 82, 24, 228. page 281, The reference is to a paper entitled "On the Existence . E. Mice, "O a Susiue o Wees ue o Saey, of Titanic Acid in Hessian Crucibles", by R. H, Brett and wi oices o Oe Suecs", Ar,. .S.Art, 80,,40. Golding Bird, published in The Philosophical Magazine in 2. e a G. i, "O e Eisece o iaic Aci i 1835 (12), Faraday noted on his interleaf: essia Cucies", hl. M,, 8, 6 (r. , . Woaso o me i 8228 a essia cucies coaie iaae a aso a Cois cucies eseme em i a Sydney Ross is Professor of Chemistry at Rensselaer Poly- esec. technic Institute, Troy, NY 12180 and is the author of "Nine- teenth-Century Attitudes: Men of Science". Again, Faraday did not carry this defense of Wollaston's priority into his third edition, although the fact that he entered it in an appropriate place in his interleaved coy of the text, indicates that at one time he had meant to do so. UNPUBLISHED LETTERS OF FARADAY One change, however, he deemed important for the third AND OTHERS TO EDWARD DANIEL edition, It consisted of introducing the terms of his own CLARKE coinage, "electrolyte" and "electrodes", into the section on voltaic electricity, instead of the terms he had used originally, Sydney Ross, Rensselaer Polytechnic Institute namely, "imperfectly conducting matter" and "poles". It may seem surprising that so creative a worker as Faraday The letters printed here are part of a collection of autograph should have employed himself in so routine task as combing letters made by Edward Daniel Clarke (1769-1822) based on the printed literature for references with the diligence that these his own private correspondence. His biographer, William annotations display. Nevertheless, a copy of the cumulative Otter, wrote (1): 80 u, is. Cem. ( O is ies a coesoes i may e sai wiou e siges eaggeaio, a ey ome o icosieae oio o e esos wose eaig a geius ae se a use uo ei couy uig e as wey yeas, a is, o i oe eame oy, u i seea a i e a sew as muc ega o is ow ees, y akig coies o em, as e i o ose o oes, y eseig em, ey wou ae cosiue ogee a oy o coesoece as ieesig a isucie as ay wic as ee esee o e uic i ou memoy esies e emie ames o oso, a, a uey, wi . May a , ue, aeay meioe, ee aea i e eames o cassica a ioogi ca ieaue, M. aye Kig, , aie, , oomie, oes sos Mok a oee, . Kaye (iso o iso, M, Maias, M, Weso, Aceaco Wagam, &c, amogs esos isi guise y ae, o i e ie as, M. o awkis, M. Maus, o yo, M. Waoe, o Aeee, M. Squie, o aeia, M, Wikis, M. oouse, M. aks, M. ucka, . ee, Si W. Ge, M. amio, Mao ee, M, ea, &c. i cemisy, mieaogy, a aua isoy, , Woaso, wose ees ae aicuay ki a isucie, M, ea, Si , ay, M. Wae, , omso, e mieaogica oesso a Aeee, M, aisoe, , Mie, ea o Caise, oesso Ki o Oo, M. ome, M. u, M. esie, . ewse, M. ameso, Si W. Smi, M. ame, &c. o ese may e ae, M. Ege Ewa aie Cake wo, M. Wieoce, . icos, Aaic oesso a Oo (om a egaig y . Meye amogs oeiges, Ceaie, aas, ay, oee, &c, mos sikig caaces eogig o e Camige ie o a my Many of these letters were sold at auction on 27 May 1842 eay ime. e was ey eoque: I sou say e mos auay but at least one substantial block of material was not sold at that eoque ma I ae ea: a is, e gae o wa e sai a e time. The late Louis F, Gilbert of University College, London, cam a uecy, eaesess, a ie eiey cou gie, ie owned a large collection of letters addressed to Clarke, which ee o is meaig ai uo, wic oe cou o ea a cose he had purchased from Thomas Thorp, bookseller. These are eamiaio. e was o a eac o oou ma o sciece, u e the letters mentioned by Otter as pertaining to chemistry, a a goo kowege o wa was oig i e wo o sciece, a mineralogy, and natural history, They are bound into two large uaue couage i eeaouig o ake is sae i i. e ey volumes, which were consigned to the auction room by G ilbert' s eay ew imse o ieces oce o wice i is eeimes wi is widow and sold as lot 462 at Sotheby's on 19 July 1960, when oyyoge owie. e, o euig o e Uiesiy ae is they came into my possession. aes, ega o eie a couse o ecues o Mieaogy, wic We owe the preservation of these early letters of Faraday to wee ey aacie, o i em e iouce soies a iscussios Clarke's habit of retaining, as a part of his autograph collection, aou a a e a see a ea o i e couse o is aes. all letters addressed to him, which he then had bound together Amog oe igs e soke o meeoic soes. e ceeae mass in chronological order, so that through the decades none o meeoic io wic aas a see i Sieia a a escie became detached and separated. Few letters of Faraday are i is Travels, a e ecey aw geea aeio o e suec. extant from this period, before his name was well known and Cake a o couse a eoy o e suec o ese soes. I o o even before the cult of collecting autographs had reached its kow i ayoe ow maiais a eoy. e e a as a later growth (2. susaces ca eis i a gaseous sae, e comoes o ese soes Edward Daniel Clarke, Faraday's correspondent in 1816, is mig occu, i a gaseous sae, i e ige egios o e eas well introduced in the following words of William Whewell amosee mig ee, owig o some aua ee o oe, (3): comie o couse wi eosie ioece, oise a ie, a mig e a o ea. I o o kow i is eoy mae may coes We I was a uegauae a Camige aou 8,I aee e some o us ceaiy auge a i a oe o my ies sai a i mieaogica ecues o e ceeae Ewa aie Cake, e seeme o im us as ikey a e ai sou o iscuis om ime us eue om is aes wic a eee om e aic o o ime i e eigouoo o a ou mi.