William Prout
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
William Prout
Educación Química (2015) 26(2), 162-172 educación Química www.educacionquimica.info PARA QUITARLE EL POLVO William Prout Jaime Wisniak Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel Received 19 July 2014; accepted 25 September 2014 KEYWORDS Abstract William Prout (1785-1850) a multifaceted English physician, conducted important Digestion; research in the areas of physiology, meteorology, and chemistry; he studied the processes of Respiration; digestion, respiration, and blood formation, the urinary system, urine and urinary calculi, iden- Blood formation; tified the presence of HCl in the gastric fluid, and proposed the theory that the atomic weight Urinary system; of an element is an integer multiple of the atomic weight of hydrogen (Prout’s hypothesis). Urine; All Rights Reserved © 2015 Universidad Nacional Autónoma de México, Facultad de Química. This is Urinary calculi; an open access item distributed under the Creative Commons CC License BY-NC-ND 4.0. Gastric fluid; Prout’s hypothesis William Prout PALABRAS CLAVE Digestión; Resumen William Prout (1785-1850), un médico inglés multifacético, realizó importantes in- Respiración; vestigaciones en las áreas de medicina, fisiología, meteorología y química; estudió los procesos Formación de la de digestión, respiración y formación de la sangre, el sistema urinario, la orina y los cálculos sangre; urinarios, identificó la presencia de HCl en el jugo gástrico y propuso la teoría que los pesos Sistema urinario; atómicos de los elementos eran un múltiplo entero del peso del hidrógeno (hipótesis de Prout). Orina; Derechos Reservados © 2015 Universidad Nacional Autónoma de México, Facultad de Química. Este es Cálculos; un artículo de acceso abierto distribuido bajo los términos de la Licencia Creative Commons CC BY- Fluido gástrico; NC-ND 4.0. -
HISTORY Nuclear Medicine Begins with a Boa Constrictor
HISTORY Nuclear Medicine Begins with a Boa Constrictor Marshal! Brucer J Nucl Med 19: 581-598, 1978 In the beginning, a boa constrictor defecated in and then analyzed the insoluble precipitate. Just as London and the subsequent development of nuclear he suspected, it was almost pure (90.16%) uric medicine was inevitable. It took a little time, but the acid. As a thorough scientist he also determined the 139-yr chain of cause and effect that followed was "proportional number" of 37.5 for urea. ("Propor inexorable (7). tional" or "equivalent" weight was the current termi One June week in 1815 an exotic animal exhibi nology for what we now call "atomic weight.") This tion was held on the Strand in London. A young 37.5 would be used by Friedrich Woehler in his "animal chemist" named William Prout (we would famous 1828 paper on the synthesis of urea. Thus now call him a clinical pathologist) attended this Prout, already the father of clinical pathology, be scientific event of the year. While he was viewing a came the grandfather of organic chemistry. boa constrictor recently captured in South America, [Prout was also the first man to use iodine (2 yr the animal defecated and Prout was amazed by what after its discovery in 1814) in the treatment of thy he saw. The physiological incident was common roid goiter. He considered his greatest success the place, but he was the only person alive who could discovery of muriatic acid, inorganic HC1, in human recognize the material. Just a year earlier he had gastric juice. -
Early Russian Organic Chemists and Their Legacy
SpringerBriefs in Molecular Science Early Russian Organic Chemists and Their Legacy Bearbeitet von David Lewis 1. Auflage 2012. Taschenbuch. xii, 136 S. Paperback ISBN 978 3 642 28218 8 Format (B x L): 15,5 x 23,5 cm Gewicht: 237 g Weitere Fachgebiete > Chemie, Biowissenschaften, Agrarwissenschaften > Chemie Allgemein > Geschichte der Chemie Zu Inhaltsverzeichnis schnell und portofrei erhältlich bei Die Online-Fachbuchhandlung beck-shop.de ist spezialisiert auf Fachbücher, insbesondere Recht, Steuern und Wirtschaft. Im Sortiment finden Sie alle Medien (Bücher, Zeitschriften, CDs, eBooks, etc.) aller Verlage. Ergänzt wird das Programm durch Services wie Neuerscheinungsdienst oder Zusammenstellungen von Büchern zu Sonderpreisen. Der Shop führt mehr als 8 Millionen Produkte. Chapter 2 Beginnings 2.1 Introduction At the start of the twentieth century, organic chemistry was not yet 75 years old as a separate and legitimate sub-discipline of the science. Considerable progress had been made in these first seven decades, and the stage was set for the dramatic advances in the science to come in the following century. Most practicing organic chemists are familiar with many of the great German, French and English organic chemists whose work helped the fledgling discipline grow, but few are familiar with the role that Russian organic chemists of the nineteenth and early twentieth century played in the development of the science. And this is in spite of the fact that many of the named rules and reactions that one studies in the first course in organic chemistry are, in fact, of Russian origin. It is the intent of this book to help rectify that deficiency. -
Alexander Marcet (1770-1822), Physician and Animal Chemist
ALEXANDER MARCET (1770-1822), PHYSICIAN AND ANIMAL CHEMIST by N. G. COLEY ALEXANDER John Gaspard Marcet1 was born in Geneva in the year 1770. His father, who was a merchant of Huguenot descent,2 wished him to follow the family business, but the young Alexander had no liking for commerce. Instead he decided to train for a career in the law, but before he could complete his studies he became involved in the disturbed political situation which arose in Geneva after the French Revolution.3 This resulted in his imprisonment, along with his boyhood friend Charles Gaspard de la Rive.4After the death of Robespierre in 1794 the two friends were at length successful in obtaining a special dispensation by which they were released from prison but were banished from Switzerland for five years. They then came to Edinburgh, where they took up the study of medicine, both gaining the M.D. on the same day in 1797. There was a strong chemical tradition in the University of Edinburgh at this time, deriving from the earlier influence of men like William Cullen. Joseph Black was in the chair of medicine and chemistry and the university was also served by Daniel Rutherford, from whom Marcet received instruction. The interest which Marcet was later to show in chemistry became apparent in that he chose to write his doctoral thesis on diabetes,5 about which several plausible chemical theories were currently under discussion in the university. Immediately after qualifying in 1797, Marcet moved to London where he was first of all assistant physician to the Public Dispensary in Cary Street. -
Project Note Weston Solutions, Inc
PROJECT NOTE WESTON SOLUTIONS, INC. To: Canadian Radium & Uranium Corp. Site File Date: June 5, 2014 W.O. No.: 20405.012.013.2222.00 From: Denise Breen, Weston Solutions, Inc. Subject: Determination of Significant Lead Concentrations in Sediment Samples References 1. New York State Department of Environmental Conservation. Technical Guidance for Screening Contaminated Sediments. March 1998. [45 pages] 2. U.S. Environmental Protection Agency (EPA) Office of Emergency Response. Establishing an Observed Release – Quick Reference Fact Sheet. Federal Register, Volume 55, No. 241. September 1995. [7 pages] 3. International Union of Pure and Applied Chemistry, Inorganic Chemistry Division Commission on Atomic Weights and Isotopic Abundances. Atomic Weights of Elements: Review 2000. 2003. [120 pages] WESTON personnel collected six sediment samples (including one environmental duplicate sample) from five locations along the surface water pathway of the Canadian Radium & Uranium Corp. (CRU) site in May 2014. The sediment samples were analyzed for Target Analyte List (TAL) Metals and Stable Lead Isotopes. 1. TAL Lead Interpretation: In order to quantify the significance for Lead, Thallium and Mercury the following was performed: 1. WESTON personnel tabulated all available TAL Metal data from the May 2014 Sediment Sampling event. 2. For each analyte of concern (Lead, Thallium, and Mercury), the highest background concentration was selected and then multiplied by three. This is the criteria to find the significance of site attributable release as per Hazard Ranking System guidelines. 3. One analytical lead result (2222-SD04) of 520 mg/kg (J) was qualified with an unknown bias. In accordance with US EPA document “Using Data to Document an Observed Release and Observed Contamination”, 2222-SD03 lead concentration was adjusted by dividing by the factor value for lead of 1.44 to equal 361 mg/kg. -
Platinum Group Metals Technology Gmelin Handbook of Inorganic Chemistry, 8Th Edition, Platinum, Suppl
Platinum Group Metals Technology Gmelin Handbook of Inorganic Chemistry, 8th Edition, Platinum, Suppl. Vol. A 1 EDITED BY G. J. K. ACRES AND K. SWARS, Springer-verlag, Berlin, 1986, 340 pages, ISBN 3-540-93528-2,DM 1,225 History records that in 1822 Leopold Gmelin by first considering the methods used to refine (1788-1853)~then Professor of Chemistry at the metals. It then goes on to review the various Heidelberg University made a modest contribu- purification routes and the methods of deter- tion to the advancement of the chemistry of the mining impurities. platinum metals by his discovery, in collabora- Although the electrodeposition of platinum tion with Fredrich Wohler, of the double has been practised for over 150 years, the sub- potassium cyanides of both platinum and ject still attracts considerable interest as users palladium. A more notable and lasting achieve- strive to exploit the properties of certain of the ment was, of course, the establishment in 1817 platinum group metals in the most economical of his “Handbook of Theoretical Chemistry” way. Within the 26 pages devoted to elec- which recorded and reviewed progress in that trodeposition, ruthenium, palladium, osmium, subject. Over the intervening years this process iridium and platinum have been reviewed by has continued, and although organic chemistry Ch. J. hub, of Forschungsinstitut fur is no longer included the length and importance Edelmetalle und Metallchemie, and rhodium of the publication has grown remarkably as has by F. Simon of Degussa. The properties of the task of compiling it. Now the responsibility electrodeposited rhodium, which include tar- of the Gmelin Institute for Inorganic nish resistance, good wear resistance, low con- Chemistry, one of the institutes of the Max- tact resistance, high reflectivity and attractive Planck Society for the Advancement of Science, colour, make it a most useful material for both the handbook is currently in its 8th edition. -
The Value of Vague Ideas in the Development of the Periodic System of Chemical Elements
The Value of Vague Ideas in the Development of the Periodic System of Chemical Elements. Thomas Vogt Departments of Chemistry & Biochemistry and Philosophy University of South Carolina Abstract The exploration of chemical periodicity over the past 250 years led to the development of the Periodic System of Elements and demonstrates the value of vague ideas that ignored early scientific anomalies and instead allowed for extended periods of normal science where new methodologies and concepts are developed. The basic chemical element provides this exploration with direction and explanation and has shown to be a central and historically adaptable concept for a theory of matter far from the reductionist frontier. This is explored in the histories of Prout’s hypothesis, Döbereiner Triads, element inversions necessary when ordering chemical elements by atomic weights, and van den Broeck’s ad-hoc proposal to switch to nuclear charges instead. The development of more accurate methods to determine atomic weights, Rayleigh and Ramsey’s gas separation and analytical techniques, Moseley’s x-ray spectroscopy to identify chemical elements, and more recent accelerator-based cold fusion methods to create new elements at the end of the Periodic Table point to the importance of methodological development complementing conceptual advances. I propose to frame the crossover from physics to chemistry not as a loss of accuracy and precision but as an increased application of vague concepts such as similarity which permit classification. This approach provides epistemic flexibility to adapt to scientific anomalies and the continued growth of chemical compound space and rejects the Procrustean philosophy of reductionist physics. Furthermore, it establishes chemistry with its explanatory and operational autonomy epitomized by the periodic system of elements as a gateway to other experimental sciences. -
Philosophical Transactions (A)
INDEX TO THE PHILOSOPHICAL TRANSACTIONS (A) FOR THE YEAR 1889. A. A bney (W. de W.). Total Eclipse of the San observed at Caroline Island, on 6th May, 1883, 119. A bney (W. de W.) and T horpe (T. E.). On the Determination of the Photometric Intensity of the Coronal Light during the Solar Eclipse of August 28-29, 1886, 363. Alcohol, a study of the thermal properties of propyl, 137 (see R amsay and Y oung). Archer (R. H.). Observations made by Newcomb’s Method on the Visibility of Extension of the Coronal Streamers at Hog Island, Grenada, Eclipse of August 28-29, 1886, 382. Atomic weight of gold, revision of the, 395 (see Mallet). B. B oys (C. V.). The Radio-Micrometer, 159. B ryan (G. H.). The Waves on a Rotating Liquid Spheroid of Finite Ellipticity, 187. C. Conroy (Sir J.). Some Observations on the Amount of Light Reflected and Transmitted by Certain 'Kinds of Glass, 245. Corona, on the photographs of the, obtained at Prickly Point and Carriacou Island, total solar eclipse, August 29, 1886, 347 (see W esley). Coronal light, on the determination of the, during the solar eclipse of August 28-29, 1886, 363 (see Abney and Thorpe). Coronal streamers, observations made by Newcomb’s Method on the Visibility of, Eclipse of August 28-29, 1886, 382 (see A rcher). Cosmogony, on the mechanical conditions of a swarm of meteorites, and on theories of, 1 (see Darwin). Currents induced in a spherical conductor by variation of an external magnetic potential, 513 (see Lamb). 520 INDEX. -
The Century's Progress in Chemistry
THE CENTURY’S PROGRESS IN CHEMISTRY. 749 THE CENTURY’S PROGRESS IN CHEMISTRY. HENRY SMITH WILLIAMS, M.D. tlie casual observer, it might .seem to beginnings have great end- have no alliance whatever. The won- SMALLings—sometimes. As a case in point, derful theory of atoms, on which the note what came of the small original ef- whole gigantic structure of modern chem- fort of a self-trained back-country Quak- istry is founded, was the logical out- er youth named John Dalton, who along growth, in the mind of John Dalton, of toward the close of the last century be- those early studies in meteorology. came interested in the weather, and was The way it happened was this; From led to construct and use a crude rain- studying the rainfall, Dalton turned nat- gauge to test the amount of the wa- urally to the complementary process of terfall. The simple experiments thus evaporation. He was soon led to believe inaugurated led to no fewer than two that vapor exists in the atmosphere as an hundred thousand recorded observations independent gas. But since two bodies regarding the weather, which formed the cannot occupy the same space at the same basis for some of the most epochal dis- time, this implies that the various atmos- coveries in meteorology, as we have seen. pheric gases are really composed of discrete But this w Tas only a beginning. The particles. These ultimate particles are so simple rain-gauge pointed the way to the small that we cannot see them—cannot, most important generalization of our cen- indeed, more than vaguely imagine them tury in a field of science with which, to —yet each particle of vapor, for example, 750 HARPER’S NEW MONTHLY MAGAZINE. -
Academic Genealogy of Charles Isbell, Jr
Nilos Kabasilas Elissaeus Judaeus Demetrios Kydones Georgios Plethon Gemistos 1380, 1393 Basilios Bessarion Manuel Chrysoloras 1436 Mystras Johannes Argyropoulos Guarino da Verona 1444 Università di Padova 1408 Cristoforo Landino Marsilio Ficino Vittorino da Feltre 1462 Università di Firenze 1416 Università di Padova Angelo Poliziano Theodoros Gazes Ognibene (Omnibonus Leonicenus) Bonisoli da Lonigo Heinrich von Langenstein 1477 Università di Firenze 1433 Constantinople / Università di Mantova Università di Mantova 1363, 1375 Université de Paris Demetrios Chalcocondyles Gaetano da Thiene Alessandro Sermoneta Moses Perez Scipione Fortiguerra Leo Outers Rudolf Agricola Johannes von Gmunden 1452 Mystras / Accademia Romana 1493 Università di Firenze 1485 Université Catholique de Louvain 1478 Università degli Studi di Ferrara 1406 Universität Wien Janus Lascaris Nicoletto Vernia Jean Tagault François Dubois Pietro Roccabonella Girolamo (Hieronymus Aleander) Aleandro Pelope Maarten (Martinus Dorpius) van Dorp Jacob ben Jehiel Loans Thomas à Kempis Georg von Peuerbach 1472 Università di Padova Università di Padova 1516 Université de Paris Università di Padova 1499, 1508 Università di Padova 1504, 1515 Université Catholique de Louvain 1440 Universität Wien Niccolò Leoniceno Marco Musuro Pietro Pomponazzi Jacobus (Jacques Dubois) Sylvius Rutger Rescius Petrus (Pieter de Corte) Curtius Matthaeus Adrianus Jan Standonck Johann (Johannes Kapnion) Reuchlin Alexander Hegius Johannes Müller Regiomontanus Luca Pacioli 1453 Scuola Pubblica di Vicenza 1486 -
The Scientific Publications of Alexander Marcet
Bull. Hist. Chem., VOLUME 43, Number 2 (2018) 61 THE SCIENTIFIC PUBLICATIONS OF ALEXANDER MARCET G. J. Leigh, University of Sussex, [email protected], and Carmen J. Giunta, Le Moyne College, [email protected] Supplemental material Abstract 1808 when he was elected to the Royal Society. French was his native language and this enabled him to maintain This paper lists all the publications which can be contacts with French and Swiss researchers, and to act as attributed to Alexander Marcet, a physician, chemist foreign secretary to, for example, the Geological Society and geologist active during the first two decades of the of London. He died in 1822. His scientific activities show nineteenth century. The contents of each publication are how, at the beginning of the nineteenth century, chem- described and assessed. Marcet was a practicing physi- istry in Britain was professionally and institutionally cian at a time and place when many chemists had medical intertwined with medicine, even while other chemists connections. His chemical work is primarily analytical were breaking free from it. and it also demonstrates how chemistry might eventu- Detailed information on Alexander and Jane Marcet ally shed light on how the human body deals with the is still easily available, and Jane’s life, in particular, has materials it has ingested. been described in considerable detail (1). However, Alex- ander’s professional career has been relatively neglected. Introduction This paper is an attempt to illustrate that he was no mere helper to his exceptional wife, but a significant figure in Alexander Marcet (1770-1822) and his wife Jane his own right. -
Biochemistry Branches ? ? (1614-1672) M.D
earlier philosophers and theologians Paulus Venetus ? (1369/1372-1429) M.A.? 1395 (Paris) Sigismondo Polcastro (1384-1473) Gaetano da Thiene A.D. 1412 (Padua) (1387-1465) M.D. 1424 (Padua) M.D.? (Padua) Intellectual Heritage of the UW-Eau Claire Chemists, 1919-2012 Pietro Roccabonella Nicoletto Vernia (≈1430-1491) (ca. 1420-1499) M.D.? 1455 (Padua) A.D. 1458 (Padua) Petrus Ryff (1529-1612) Nicolo da Lonigo (Leoniceno) Pietro Pomponazzi M.D. 1584 (Basel) (1428-1524) (1462-1525) M.D./Ph.D. 1453 (Padua) M.D. 1496 (Padua) Emmanuel Stupanus (1587-1664) M.D. 1613 (Basel) Antonio Musa Brasavola Giovanni Battista della Monte Vittore Trincavelli Franciscus de la Boë (1500-1555) (Joannes Baptista Montanus) (ca. 1496-1568) (Silvius) M.D. 1520 (Ferrara) (1498-1551) M.D. ? (Padua) Biochemistry Branches ? ? (1614-1672) M.D. 1539? (Padua) M.D. 1637 (Basel) Gabriele Fallopio Antoine Vallot Etienne de Clave (1523-1562) (1594-1671) (fl. ca. 1624) M.D. 1669 (Jena) M.D. 1617 (Montpelier) M.D.? Professeur (Jardin du Roi, Paris) Johann Winther von Andernach Bassiano Landi (Ioannes Guinterius Andernacus) Girolamo Fabrici (Aquapendente) (d. ca. 1563) Michaeli John Merle Coulter (1505-1574) (1533-1619) M.D. 1542 (Padua) (1851-1928) earlier philosophers and theologians Christophle Glaser M.D. 1532 (Paris) M.D. 1559 (Padua) Karl Gotthelf Lehmann Ph.D. 1884 (Indiana) (1615-1678) Theodor Zwinger (1812-1863) Jacques Toussain (Jacobus Tussanus) Guillaume Rondelet Giulio Cesare Casseri (1533-1588) Dr. med. et chirurg. 1835 (Leipzig) M.D. ca. 1640 (Basel) (ca. 1498-1547) (1507-1566) (1552-1616) M.D. 1559 (Padua) M.A. 1521 (Paris) M.D.