‎Química‎

‎"HOFF, J.H.VAN'T.‎

‎Vorlesungen über theoretische und physikalische Chemie. 3 vols.‎

‎Braunschweig, Friedrich Vieweg, 1901 - 1903. 8vo. In contemporary half cloth with gilt lettering to spine. Previous owner's name to half title and sunning to spine. Internally fine and clean. XI, (1), 251, X, 150, X, 155pp.‎

‎Second edition of Hoff's lectures.""His [Hoff] lectures appeared in Vorlesungen über theoretische und physikalische Chemie (1898-1900), which was translated into many languages. With Wilhelm Ostwald, he was a cofounder of the Zeitschrift für physikalische chemie, the first issue of which appeared in February 1887."" (DSB).‎

Referencia librero : 52780

‎"HOFMANN, A.W. (AUGUST WILHELM von). - THE TRUE NATURE OF AMINES DEMONSTRATED.‎

‎Reseraches into the Molecular Constitution of the Organic Bases. (Second Memoir). Communicated by James Clark. Received March 12, - Read April 3, 1851.‎

‎(London, Richard Taylor, 1851). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1851 - Part I. Pp. 357-398.‎

‎First appearance of a landmark paper in organic chemistry in which Hofmann demonstrates the true nature of amines.""Wurtz had shown the existence of methyl and ethyl amines and had suggested that that they may be regarded as derivatives of ammonia. Hofmannproved this in adetailled study, in which he showed that all hydrogens of ammonia, and even of the ammonia radical, could be replaced by organic groups to give primary, secondary, and tertiary amines, and quaternary ammonium compounds. In the course of this work, he also cleared up the relation between ammonia and the ammonium radical which had long troubles chemists. The investigation was carried out in 1850, at a time when the type theory was foremost in theminds of organic chemists. It was therefore natural that Hofmann should formulate his nes compounds as representative of the ""ammonia type"". The formulas which he wrote, however scarcely differ from those used today. These clear examples helped Frankland in developing his theory of variable valence.""(Klickstein p. 364). Klickstein's selection is taken form the offered item pp. 392-397.‎

Referencia librero : 44307

‎"HOMBERG, (WILHELM, GUILLAUME).‎

‎Memoire touchant les Vegetations artificielles.‎

‎(Paris, Jean Boudot, 1712). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1710"". Pp. 426-438.‎

Referencia librero : 45673

‎"HOMBERG, (WILHELM, GUILLAUME). - THE FIRST DETERMINATION OF EQUIVALENT WEIGHTS IN CHEMISTRY.‎

‎Observation sur la quantite exacte des sels volatiles Acides contenus dans les differens esprites acides. (+) Observations sur la quantité D'Acides absorbe's par les Alcalis terreux. (2 Memoirs).‎

‎(Paris, Jean Boudot, 1702 a. 1703). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences"". Année 1699 a. Année 1700. Pp. 44-51 and 1 textillustration. (depicting his + pp. 64-71.‎

‎First appearance of the 2 papers which represents Homberg's main works. In these papers he shows for the first time how to determine equal weights of substances, that all acids differ only in water content, and that dry acids combines in equal proportions with alkali. In the first paper he also gives the Pygnometer Bottle its modern form.""Probably his most importent work was on the strenght of acids and the quantity required to neutralize a given quantity of alkali (two papers published in 1699 and 1700) - the papers offered - Homberg recognized that different alkalis neutralized the same acid in different proportion but believed that the relative strenghts of two acids could be determined by using the same alkali in each case. he treated the the question of neutralization (or dissolvability, as he called it) in quite quantitative fashion, showing that if an alkaline salt were treated with an acid, the gain of weight ofthe salt wasan indication of the amount of acid absorbed....Homberg nevertheless understood the fundamentals of the process and thereby laid the foundation for an understanding the nature of salts.""(DSB VI, p. 478).Parkinson ""Breakthroughs"" 1700 C.‎

Referencia librero : 44405

‎"HUGGINS, WILLIAM.‎

‎On the Spectra of some of the Chemical Elements. Received November 5, - Read December 10, 1863.‎

‎(London, Taylor and Francis, 1864). 4to. No wrappers as extracted from ""Philosophical Transactions"" Vol. 154 - Part II, pp. 139-160 and 2 large folded engraved plates.‎

‎First appearance of Huggin's series of spectra done with his new spectroscope made of six prism of heavy glass as a preliminary investigation to the work with the spectroscopy of the stars with the star-spectroscope, as it was necessary to have convenient maps of the spectra of terrestrial elements. Huggins devoted a large part of 1863 to the making of 24 such maps with a train of six prismes. These maps were published in the paper offered.""William Huggins (1824-1910), English astronomer, a pioneer in spectroscopy and photography. He examined spectroscopically the chemical constitution of stars and comets, and the gaseous nature of planetary and diffuse nebulae"" he applied the Doppler Principle to the measurement of the radial velocities of stars, and published an atlas of representative stellar spectra"" (Ripley: Source Book in Astronomy).‎

Referencia librero : 42261

‎"HUMBOLDT, ALEXANDRE-FRÉDERIC. (ALEXANDER von).‎

‎Sur l'absorption de l'oxigène par les terres simples, et son influence dans la culture du sol..‎

‎Paris, Chez Fuchs, An VII, (1799). Without wrappers..In: ""Annales de Chimie, ou Recueil de Mémoires concernant la Chemie"" Tome 29, 2. Cahier. Pp. 113-224. (Entire issue offered). Humboldt's paper: pp. 125-160.‎

‎First printing of perhaps Humboldt's most importent paper in chemistry.""In fact, immediately following this clash (the clash with Fourcroy over the vitalistic principle in organic chemistry, where Fourcroy considered ""that Mr. Humboldt proceed to quickly in his explanations""), Humboldt went to Vauquelin and Fourcroy's laboratories in Paris where he sought to gain experience on the new French methodology. Thanks to this training, Humboldt wrote a memoir on the earth's absorption of oxygen that was soon to become famous (the paper offered). This memoir is also the evidence that Humboldt had joined the new way of reasoning in chemistry.""(Angela Bandinella)‎

Referencia librero : 43635

‎"HUNT, ROBERT. - EARLY WORK ON PHOTOCHEMISTRY.‎

‎On the Influence of Iodine in rendering several Argentine Compounds, spread on Paper, sensitive to Light, and on a new Method of producing, with greater distinctness, the Photographic Image. Received May 13, - Read June 18, 1840.‎

‎(London, Richard and John E., Taylor, 1843. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1840 - Part II. Pp. 325-334. Clean and fine.‎

‎First appearance of a pioneer-paper in the history of early photography.""Robert Hunt (1807-1887) wasibrarian and keeper of mining records at the Museum of Practicalgeology and professor of mechanical engineering at the Royal School of Mines, at London. He carried on numerous photographic and photochemical experiments and he was one of the founders of the London Photographic Society. These experiments with organic and inorganic light-sensitive substances, which, with characteristic unselfiness, he made publicg during the early forties of the lat century, were extremely useful in the study of photochemistry, which was the in its infancy, and were of great servicee for years to those who came after him and used his researches for the basis of their studies.""(Eder: ""History of Photography"", p. 326.‎

Referencia librero : 42663

‎"HÖNIGSCHMID, O. et MLLE ST.-HOROVITZ - PROVING THE EXISTENCE OF LEAD ISOTOPES‎

‎Sur les poids du plomb de la pechblende.‎

‎(Paris, Gauthier-Villars), 1914. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 158, No 24. Pp. (1737-) 1839. (Entire issue offered). The paper: pp. 1796-1798.‎

‎First appearance of an importent paper proving the existence of lead isotopes and thus changed the course of chemical thinking by proving that the periodic table of elements could not be founded only on atomic weights. The paper is translated in Leicester ""Source Book in Chemistry 1900-1950"" with the translated title ""The Atomic Weight of Lead from Pitchblende"".‎

Referencia librero : 47269

‎"JACOBI, H.‎

‎Zur Geschichte der Homburger Mineralquellen. Mit einer Anlage Eduard Christian Trapp der Gründer des Bades Homburg von August Trapp.‎

‎Bad Homburg, ""Taunusbote"" - Zeitungsverlag, n.d. (um 1920). Orig. printed wrappers. On frontwrapper ""überreict vom Verfasser ""(printed), ""mit bestem grüss"" (in hand). (4),299 pp. textillustrations. Sonderdruck aus dem Mittheilungen des Verein für Geschichte und Altertumskunde Bad Homburg v.d. Heft XVIII.‎

Referencia librero : 52836

‎"JOHNSTON, JAMES F.W.‎

‎Hverdagslivets Chemi efter James F.W. Johnstons ""the Chemistry of common life"". 1.-2. deel. (2 Bd.).‎

‎Kjøbenhavn, Philipsen, 1855-56. 2 samtidige hldrbd. Rig rygforgyldning. Let slid på rygge og kanter. Stempel på titelblade. XVI,336,(2)"XVIII,487,(2) pp.‎

Referencia librero : 58570

‎"KAHLBAUM, GEORG W.‎

‎Justus von Liebig und Freidrich Mohr in ihren Briefen von 1834-1870. Ein Zeitbild. Herausgegeben und mit Glossen, Hinweisen und Erläuterungen versehen in gemeinschaft mit Otto Merckens und W.I. Baragiola.‎

‎Leipzig, Barth, 1904. Orig. full cloth. Gilt. 2 portraits as frontispieces. LVIII,274 pp. Clean and fine.‎

‎""Monographien aus der geschichte der Chemie"", Achtes heft.‎

Referencia librero : 52831

‎"KAPITZA, P (+) J. F. ALLEN (+) A. D. MISENER.‎

‎Viscosity of liquid Helium below the lambda-point [Kapitza] (+) Flow of liquid Helium II [J. F. Allen & A. D. Misener] [The volume also contain the following papers: New phenomena connected with heat flow in liquid Helium II [J. F. Allen & H. Jones] (... - [THE DISCOVERY OF SUPERFLUIDITY]‎

‎New York, Macmillian and Co, 1938. Royal8vo. In publisher's pictorial cloth with the original wrappers [in the back]. Gilt lettering and Nature's logo to spine and front board. Entire issue of ""Nature"", January - June, 1938, Vol. 141. ""Emmanuel College"" in gilt lettering to spine and two library stamps to title-page and first index page. Two small white paper labels pasted on to spine and a small tear to top of spine. Very slight wear to extremities, otherwise a very fine and clean copy. Rare in the publisher's binding. P. 74"" P. 75. [Entire volume: LXIV, 1156 + VIII, IV, VIII, VIII, XVI, VIII, VIII, XVI, VIII, XII, VIII, XII, XII, IV, IV, VIII, XII, VIII, VIII, VIII, VIII, XII, VIII, IV, XVI, CCLX (Advertisements).‎

‎First publication of these two seminal papers which constitutes one of the most significant discovery in 20th century physics. It ushered a golden period of low-temperature physics and created a new research field within physics which was later to be called quantum liquids. Both paper described a hitherto unknown state of matter: superfluidity of matter. The two discoveries were made independently, Kapitza's paper superseding Allen and Misener's by two weeks. Both studies reported that liquid helium flowed with almost no measurable viscosity below the transition temperature of 2.18 K.""Although the discovery of superfluidity stands as one of the most significant in physics in the 20th century, it was to be 40 years before the Royal Swedish Academy of Sciences honoured this seminal discovery with a Nobel prize - an exceptionally long interval. In 1978 Kapitza, by then 84, was given half of that year's Nobel Prize for Physics with a somewhat vague citation reading ""for his basic inventions and discoveries in the area of low-temperature physics"". The other half did not go to Allen and Misener. Today, science popularizers generally give sole credit for the discovery of superfluidity to Kapitza."" (Physics world, University of Toronto.). ""Kapitza observed that He II flowed between two closely spaced parallel plates extremely rapidly compared to He I, for the same pressure difference. This result, published in Nature on 8 January 1938, showed unambiguously that here was a new and mysterious kind of liquid - one with almost no viscosity. On the page facing Kapitza's one-page paper was another by the young Canadian physicists Jack Allen and Donald Misener, with essentially equivalent results on helium flow on long capillary tubes. It was submitted two weeks after Kapitza's, but both papers are the standard reference for the discovery of superfluidity"". (Griffin, A Century of Nature, 2003, p. 52).While investigating the thermal conductivity of liquid helium, Kapitsa measured the flow as the fluid flows through a gap between two discs into a surrounding bath. Above the lambda point, there was little flow, but below the lambda temperature, the liquid flowed with such great ease that Kapitsa drew an analogy with superconductors. It was a liquid of zero viscosity. He discovered the phenomenon in 1937 and published a paper about it in Nature in January 1938. He wrote: ""The helium below the lambda point enters a special state that might be called a ‘superfluid.’"" (DSB).Today the theory behind superfluidity is widely used within a broad variety of different subject such as spectroscopic and in high-precision devices as gyroscopes which allow the measurement of some theoretically predicted gravitational effects. In 1999, a type of superfluid was used to trap light and greatly reduce its speed. Light was passed through a Bose-Einstein condensed gas of sodium (superfluid) and found to be slowed to 17 m/s from its normal speed of 299,792,458 metres per second.Brandt, The Harvest of a Century, Pp. 254-7.‎

Referencia librero : 46897

‎"KEKULÉ, AUGUST - THE REVOLUTION IN ORGANIC CHEMISTRY.‎

‎Ueber die Constitution und die metamorphosen der chemischen Verbindungen und über die chemische Natur des Kohlenstoffs.‎

‎Leipzig und Heidelberg, C.F. Winter'sche Verlagshandlung, 1858. 8vo. Later hcloth. Spine with gilt lettering. In: ""Annalen der Chemie und Pharmacie. hrsg. von Friedrich Wöhler, justus Liebig und hermann Kopp"", Band CVI. With both titlepages. (8),392 pp. a. 1 litographed plate (shaved in outer margin, ut not belonging to Kekule's paper). (Entire volume offered). Kekule's paper: pp. 129-159. Internally clean.‎

‎First appearance of this milestone paper in organic chemistry in which he demonstrated the mutual linking together of carbon atoms, developed the idea of affinity units, later called ""valence bonds"", and thus making it possible to explain the formation of organic compounds containing large numbers of carbon atoms. This was ""the final step in the development of modern structural formulas for organic compounds..."" (Leicester & Klickstein, p. 417)""It was not till 1858 that a satisfactory theory of molecular constitution was advanced, simultaneously and independently, by thwo young chemists, Friedrich August Kekulé and Archibald Scott Couper. The theory of molecular constitution put foreward....by Couper and Kekulé rested on two main postulates, the quadriivalency of carbon,....and the capacity of the carbon atom for mutual linking or combining together to form a carbon ""chain"". By this hypothesis of the mutual linking together of carbon atoms - which waslater confirmed by experiment - it was possible to explain the formation of organic compounds containing a large number of carbon atoms. On the foundation of their postulates two postulates, moreover, (they) showed how the molecular constitution or mutual linking together of the atoms of a compound could be represented diagrammatically and the relstions between different compounds made readily intelligible. In his classic paper ""On a New Chemical Theory"" (the paper offered here in its first appearance) advanced beyond Kekulé by representing the constitutions of the compounds by means of GRAPHIC FORMULA in which, as at the present day, the valencies pf the atoms are represented by lines....his formulae are similar to those at present in use...""(Findlay pp. 34 ff)""The theory of Kekulé and Couper gave the chemists the means of solving the problems of chemical constitution"" and by means of the graphic or constitutional formulae it became possible to represent the molecular constitution of known compounds and to foresee the possible existence of isomeric compounds.""(Findlay).Parkinson ""Breakthroughs"" 1858 C. - Ostwald's Klassiker No. 183. - Leicester & Klickstein ""A Source Book in Chemistry"", pp. 417-425. - Exhibition of First Editions of Epochal Achievements in the History of Science, Berkeley 1934. No 57.‎

Referencia librero : 48805

‎"KENDREW, J. C. & G. BODO & H. M. DINTZIS & R. G. PARRISH & H. WYCKOFF & D. C. PHILLIPS.‎

‎A Three-dimensional Model of the Myoglobin Molecule Obtained By X-ray Analysis. - [THE DAWN OF STRUCTURAL BIOLOGY]‎

‎London, Macmillian and Co., 1958. Royal8vo. Bound in a green full cloth with gilt lettering to spine. Volume 181, from January to June, 1958, of ""Nature"" offered. Binding tight and clean externally as well as internally. Pp. 662-666. [Entire volume: CXLII, (2), 1816 pp].‎

‎First edition of the important paper in which the first three-dimensional model of a protein was obtained, and which thus laid the foundation for all structural biology. Kendrew was furthermore one of the first to use a computer in analyzing the data produced by x-ray diffraction. For his essential discovery Kendrew was awarded the Nobel Prize in Chemistry in 1962. The discovery is widely regarded as being one the most important in the second half of the 20th century within biology and chemistry. ""The first dramatic but hard-won success of the approach [in understanding molecules], the determination of the three-dimensional structure of a protein called myoglobin, was announced in 1958 [in the present paper]. The findings laid the foundation for the age of structure in biology: [...] the paper was the outcome of a truly Herculean task. (Garwin, A century of Nature: twenty-one discoveries that changed science and the world, 2003, Pp. 87-88).‎

Referencia librero : 43218

‎"KOLBE, HERMANN.‎

‎Zur Entwicklungsgeschichte der theoretischen Chemie.‎

‎Leipzig, Barth, 1881. Without frontwrapper. Offprint from ""Journal für praktische Chemie"". IV,117 pp.‎

Referencia librero : 53052

‎"KOPP, HERMANN. - CO-FOUNDING PHYSICAL CHEMISTRY.‎

‎Investigations of the Specific heat of Solid Bodies.‎

‎(London, Taylor & Francis, 1865). Large 4to. Without wrappers. Extracted from ""Philosophical Transactions of the Royal Society of London."", Vol. 155 - Part I. Pp. 71-202 and 1 lithographed plate. Clean and fine.‎

‎First printing. A major paper in physical chemistry, of which he may in some respects be regarded as the founder. Kopp's fame rests mainly, apart from the results presented here on physical chemistry, on his writings dealing with the history of chemistry.""In 1864 Kopp undertook the study of specific heats of a large number of elements and compounds, in an attempt to verify Neumann's law that the product of molecular weight and specific heat is a constant, regardless of the nature of the substance (in the paper offered). He found that in fact the relation was much more complicated and involved a large number of factors. He was, however, able to show that each element has the same specific heat in its free solid state as in its solid compounds. The specific heas of compounds could be calculated from those of their elements"" (DSB).‎

Referencia librero : 42439

‎"KOSSEL, W. (WALTHER).- THE FOUNDATION OF THE THEORIES OF MOLECULAR STRUCTURE.‎

‎Über Molekülbildung als Frage des Atombaus.‎

‎(Leipzig, Ambrosius Barth, 1916). Without wrappers in ""Annalen der Physik"", Vierte Folge, Bd. 49, No.3, pp. 229-377 (entire issue offered). Kossel's paper: pp. 229-362, textillustrations. Clean and fine. Punched in inner margins after cords.‎

‎First printing of this highly importent paper on the MOLECULE FORMATION AS A QUESTION OF ATOMIC STRUCTURE, introducing 'Polar Bonds'. - Kossel was awarded the Nobel Prize in Mdicine (!) in 1910.""The first successfull application of the new electron theory of atomic structure was made by Kossel, who explained the nature of inorganic, polar bonds. A similar explanation was offered by G.N. Lewis at about the same time, and he extended and theory to non polar bonds, or covalent links, as they came to be called. Langmuir further developed this aspect of the theory. The work of Kossel, Lewis and Langmuir...laid the foundations for all later theories of molecular structure."" (Leicester ""A Source Book in Chemistry 1900-1950"", pp. 94 ff. with selections from the offered paper).‎

Referencia librero : 44864

‎"L'ACADEMIE ROYALE DES SCIENCES, PARIS. - WITH FORARMEN WINSLOW, WINSLOW, J.B. ET AL.‎

‎Histoire de L'Academie Royale des Sciences. Année M.DCCXV. Avec les Memoires de Mathematiquee & de Phisique, pour la même Année. Tirés des Registres de cette Academie.‎

‎Paris, L'Imprimerie Royale, 1718. 4to. Fine contemp. full calf. Raised bands. Richly gilt spine. Tome- and titlelabels with gilt lettering. Gilt borders on covers. Light wear to foot of spine. Engraved frontispiece. (6),114,274 pp., 10 partly folded engraved plates. Clean and fine.‎

‎"L'ACADEMIE ROYALE DES SCIENCES, PARIS. - WITH FORARMEN WINSLOW, WINSLOW, J.B. ET AL.‎

‎Histoire de L'Academie Royale des Sciences. Année M.DCCXV. Avec les Memoires de Mathematiquee & de Phisique, pour la même Année. Tirés des Registres de cette Academie.‎

‎Paris, L'Imprimerie Royale, 1718. 4to. Fine contemp. full calf. Raised bands. Richly gilt spine. Tome- and titlelabels with gilt lettering. Gilt borders on covers. Light wear to foot of spine. Engraved frontispiece. (6),114,274 pp., 10 partly folded engraved plates. Clean and fine.‎

‎With original papers by: de la Hire, Maraldi, Lemery de Cadet, Cassini, Nicole, Saulmon, Delisle le Cadet, Chevalier de Louville, Rouhaut, Saulmon, Malezieu, Maraldi & Cassini, Petit, Malezieu, Reaumur, Varignon, Winslow (FIRST EDITION of the paper, describing ""forarmen Winslowii"": Nouvelles Observations anatomiques sur la Situation et la Conformation des plusieurs Visceres. pp. 226-235, Geoffroy le Cadet, Senés.‎

Referencia librero : 59024

‎"LAMBERT, JOHANN HEINRICH.‎

‎Experiences sur le Poid du sel et gravité spécifique des saumures faites et analysées.‎

‎(Berlin, Haude et Spener, 1769). 4to. No wrappers as issued in ""Mémoires de l'Academie Royale des Sciences et Belles-Lettres"", tome XVIII, pp. 27-65., 1 folded engraved plate.‎

‎First edition. Lambert describes his experiences on solutions of salt in water. Solutions of minerals in water and the behaviour of this solution under increased heat seems to have been an importent theme for Lambert during years.‎

Referencia librero : 38579

‎"LAMY, A. (CLAUDE AUGUSTE). - THE ISOLATION OF THALLIUM.‎

‎De l'existance d'un nouveau métal, le thallium.‎

‎(Paris, Mallet-Bachelier), 1862. 4to. No wrappers. In: ""Comptes rendus hebdomadaires des séances de l’Académie des sciences"", Vol. 54, No 24. Pp. (1237-) 1287. (Entire issues offered). Lamy's paper: pp. 1255-1258.‎

‎First appearance of the paper in which Lamy reported the first isolation of the new element Thallium. A large paper on the isolation was published in ""Annales de Chimie et de Physique"" a year after (1863). William Crookes was the first to observe Thallium (1861) as he found a new green line in a selenium sample, but Lamy was the first to isolate it and to prove that it was a metal.""Claude-Auguste Lamy (1820-1878) examined some slime from a sulfuric acid plant at Loos which was using Belgian pyrite and observed the green spectral line. He extracted thallium sesquichloride and isolated the metal new by electrolysis. Only after his discovery, he found out that Crookes had earlier discovered and named the new element, and gave Crookes the honour. Crookes presumed that his Thallium was something of the order of Sulphur, Selenium or Tellurium but Lamy found it to be a metal. In April 1862 he reported to the French Académie des sciences."" (Timeline of chemical elements).Parkinson ""Breakthroughs"", 1862 C - Weeks pp. 192 ff.‎

Referencia librero : 47240

‎"LAMY, CLAUDE-AUGUSTE ET AL.- THE ISOLATION OF THALLIUM.‎

‎De l'Existence d'un nouveau Métal. le Thallium. (+) Rapport fait à l'Academie des Sciences sur un Mémoire de K. Lamy relatif au Thallium. Commisaires Pelouze, H. Sainte-Claire, Dumas rapporteur. (+ regnault:) Sur la Chaleur specifique de Thallium. ...‎

‎Paris, Victor Masson et Fils, Imprimerie Gauthier-Villars, 1863. Without wrappers. In ""Annales de Chimie et de Physique"", Troisieme Series - Tome 67, Cahier Avril. Titlepage to tome 68. Pp. 385- 512 pp. and 1 folded colour plate (Spectre solaire, Spectre Thallium, showing the green line). (The entire issue offered). The papers on Thallium: pp. 385-434. Smal, stamps on verso of titlepage. Lamy's paper: pp. 383-417.‎

‎William Crookes was the first to observe Thallium (1861) as he found a new green line in a selenium sample, but Lamy was the first to isolate it and to prove that it was a metal (1862). The paper offered is Lamy's full description of his discovery, a shorter announcement was published in ""Comptes rendus"", 23 June 1862.Claude-Auguste Lamy (1820-1878) examined some slime from a sulfuric acid plant at Loos which was using Belgian pyrite and observed the green spectral line. He extracted thallium sesquichloride and isolated the metal new by electrolysis. Only after his discovery, he found out that Crookes had earlier discovered and named the new element, and gave Crookes the honour. Crookes presumed that his Thallium was something of the order of Sulphur, Selenium or Tellurium but Lamy found it to be a metal. In April 1862 he reported to the French Académie des sciences. (Timeline of chemical elements).‎

Referencia librero : 44119

‎"LAURENT, AUGUSTE‎

‎Sur la Chlorophéniise et les Acides Chlorophénisique et Chlorophénèsique. (+) Sur l'Acide Camphorique. (+) Essai sur l'Action du Chlore sur la Liqueur des Hollandais et sur quelques Ethers. - [FIRST CLASSIFICATION OF ORGANIC COMPOUNDS AND THE ""SUBSTITUTION THEORY""]‎

‎Paris, Crochard, 1836. 8vo. In contemporary half cloth with gilt lettering to spine. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, Tome 63. Entire volume offered. Some scattered brownspots, other fine with no institutional stamps. Laurent's papers: pp. 27-45, pp. 207-219 a. pp. 377-389. [Entire volume: 448 pp].‎

‎First apperance of 2 milestone papers in organic chemistry, in which Laurent ""converted Dumas' theory into a real theory theory of substitution by making the importent addition that when a compound undergoes chlorination, the chlorine takes the place , and, as it were, plays the part of the hydrogen, which is removed.""(Findley). In these papers Laurent published his table of chloridised compounds, many being then unknown. His table is THE FIRST ATTEMPT AT A CLASSIFICATION OF ORGANIC COMPOUNDS based on the generating hydrocarbonates. (Partington IV, p. 382-83). His system of classification had a profound influence on the development of organic chemistry. ""A founder of modern organic chemistry, Laurent was one of the most important chemists of the nineteenth century. He considered the behavior of matter to be a manifestation of its intimate internal structure, which one cannot determine with certainty but which one has to investigate if one wants to understand. Laurent’s preoccupation was to construct a method that could guide the chemist forward along this path, from facts to their causes. He was the first chemist to intimately associate crystallo-graphic data and chemical studies. Louis Pasteur and Charles Friedel later followed the way.""(DSB). The volume contains other notable papers: Gay-Lussac (5 papers), Boussingault, Pelouze, Justus Liebig etc. etc.‎

Referencia librero : 59782

‎"LAURENT, AUGUSTE.‎

‎Analyse du Spodumène de l'Arriège et de la Wichtyne. (+) Sur de nouveaux Chlorures et Bromures d'Hydrogéne carboné. (+) Sur la Nitronaphtalase, la Nitronaphtalèse et la Naphtalase. (+) Sur le Benzoyle et la Benzimide. - [THE NUCLEUS THEORY OF ORGANIC COMPOUNDS]‎

‎Paris, Crochard, 1835. 8vo. In contemporary half calf with gilt lettering to spine. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, tome 59, Entire volume offered. Wear to extremities, internally very fine and clean. Laurent's papers: pp. 107-111" 196-220 376-397" 397-422. [Entire volume: 446,(2) pp.].‎

‎First printing of these importent papers in the history of organic chemistry explaining the differences to Dumas' law of substitutions, and introducing a ""new type"" and what he calls ""fundamental and derived radicals"". The introduction of the ""Nucleus Theory"" was the basis for the unitary theory formulated by Gerhardt.""While studying the reactions of naphthalene and its compounds with the halogens and nitric acid, Laurent was from the start characteristically concerned with the construction of an explanatory theory that would account for these phenomena. Like most creative scientists, he generalized his solution to a specific problem through the imaginative use of analogy, leading to the elaboration of the first comprehensive theory adequate for dealing with the whole domain of contemporaneous organic chemistry."" (DSB).""A founder of modern organic chemistry, Laurent was one of the most important chemists of the nineteenth century. He considered the behavior of matter to be a manifestation of its intimate internal structure, which one cannot determine with certainty but which one has to investigate if one wants to understand. Laurent’s preoccupation was to construct a method that could guide the chemist forward along this path, from facts to their causes. He was the first chemist to intimately associate crystallo-graphic data and chemical studies. Louis Pasteur and Charles Friedel later followed the way.""(DSB).‎

Referencia librero : 59912

‎"LAURENT, AUGUSTE.‎

‎Sur les Acides Pimarique, Pyromarique, Azomarique, etc. (+) Sur les divers Nitrites et chlorure Anthrocéniques. (2 Papers).‎

‎(Paris, Crochard, 1839) No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", tome 72, Cahier 4. Pp. 337-445 (entire issue offered). Laurent's papers: pp. 383-415 and pp. 415-427. With general titlepage to volume 72.‎

‎First printing of two importent papers on organic chemistry in which Laurent used halogens systematically, and these led him to distinguish two types of reactions, (equivalent) substitutions and additions, and to develop his nucleus theory. ""A founder of modern organic chemistry, Laurent was one of the most important chemists of the nineteenth century. He considered the behavior of matter to be a manifestation of its intimate internal structure, which one cannot determine with certainty but which one has to investigate if one wants to understand. Laurent’s preoccupation was to construct a method that could guide the chemist forward along this path, from facts to their causes. He was the first chemist to intimately associate crystallo-graphic data and chemical studies. Louis Pasteur and Charles Friedel later followed the way.""(DSB).‎

Referencia librero : 45008