‎Chimie‎

‎"LAURENT, AUGUSTE. - CLEARING THE CONCEPTS EQUIVALENTS, ATOMS AND MOLECULES.‎

‎Recherches sur les Combinaisons Azotées.‎

‎Paris, Victor Masson, 1846. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", Troisieme Series - Tome 18. 512 pp. and 2 folded engraved plates. Laurents paper: pp. 266-298. Somewhat brownspotted.‎

‎First printing of this classic work in the history of organic chemistry in which Laurent made clear ""the distinction between equivalents, atoms and molecules, by attaching to these terms meanings similar to those given to them at the present day. Like Avogadro and Ampère, Laurent regarded the molecules of hydrogen, of oxygen, of chlorine, etc., as consisting of two atoms and of forming ""homogenous Compounds"" which could then give rise to ""heterogenous compounds"" by double decomposition -(HH) + (CICI) = (HCI) + (HCI) - as had long before been pointed out by Avogadro.""(Findley ""A Hundred Years of Chemistry"", p. 32.""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).‎

Riferimento per il libraio : 45993

‎"LAURENT, AUGUSTE. - FIRST CLASSIFICATION OF ORGANIC COMPOUNDS AND THE ""SUBSTITUTION THEORY"".‎

‎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.‎

‎Paris, Crochard, 1836. Contemp. hcalf with the orig. printed yellow wrappers bound at end. Spine gilt. Slightly rubbed along edges. Two stamps on verso of titlepage. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, Tome 63. 448 pp. (entire volume offered). Some scattered brownspots. Laurent's papers: pp. 27-45, pp. 207-219 a. pp. 377-389.‎

‎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.‎

Riferimento per il libraio : 45010

‎"LAURENT, AUGUSTE. - INTRODUCING THE ""NUCLEUS THEORY"" IN CHEMISTRY.‎

‎Recherches diverses de Chimie organique. (+) Suite des Recherches diverses de Chimie organique.‎

‎Paris, Crochard, 1836. Contemp. hcloth. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, Tome 66. 448 pp. a. 1 folded engraved plate. (Entire volume offered). Laurent's papers: pp. 136-213 a. pp. 314-335. Some scattered brownspots.‎

‎First printing of Laurent's long paper in which he tried to develope the rules of substitution into a chemical system oforganic compounds, the ""Nucleus theory"". Laurent is considered one of the most importent chemists in the 18th centuryHis first theoretical efforts were largely taxonomic in character. He then began to develop a pictorial model based on atomistic representations as considered by earlier French crystallographers. Laurent’s ""nucleus theory"" or ""theory of derived radicals""located every substance at the intersection of two kinds of transformations: substitutions, which operate on the matter inside the fundamental radical and do not affect its general chemical behavior, and external modifications, which influence various chemical functions. (DSB).""In his studies of the derivatives of naphtalene, Laurent was impressed by the fact the the fundamental properties of these compounds remained, in spite of the various substitutions which took place in them. A certain nucleus seemed to impose its properties on all its derivatives. This nucleus theory was the basis for the unitary which was specifically formulated by Gerhardt.""(Leicester & Klickstein ""A Source Book in Chemistry"", p. 345).The volume contains other notable papers by Regnault, D'Arcet, Chevreuil, Rose, Gay-Lussac and Carlo Matteucci's importent memoir ""Sur la Propagation du Courant Electriques dans les Liquides"", pp. 225-313.‎

Riferimento per il libraio : 45079

‎"LAURENT, AUGUSTE. - INTRODUCING THE ""NUCLEUS THEORY"" IN CHEMISTRY.‎

‎Recherches diverses de Chimie organique. (+) Suite des Recherches diverses de Chimie organique.‎

‎Paris, Crochard, 1836. Contemp. hcloth. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, Tome 66. 448 pp. a. 1 folded engraved plate. (Entire volume offered). Laurent's papers: pp. 136-213 a. pp. 314-335. Some scattered brownspots.‎

‎"LAURENT, AUGUSTE. - THE NUCLEUS THEORY OF ORGANIC COMPOUNDS.‎

‎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.‎

‎Paris, Crochard, 1835. Contemp. hcloth. Gilt lettering to spine. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, tome 59. 446,(2) pp. (Entire volume offered). Some scattered brownspots. Laurent's papers: pp. 107-111, 196-220,376-397 a. 397-422.‎

‎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).‎

Riferimento per il libraio : 49330

‎"LAURENT, M. A.‎

‎Sur l'Hydrobenzamide.‎

‎Paris, Crochard, 1836. 8vo. In contemporary half calf with gilt lettering spine and five raised bands. The original wrappers withbound in the back. In ""Annales de Chimie et de Physique"", tome 62. Entire volume offered. Paper label pasted on to top of spine. Three stamps to verso of title-page. A few light occassional brownspots, otherwise a fine copy. 23-31. [Entire volume: 448 pp.].‎

‎First appearance of Laurent's paper in which he presents his discovery of the compound Hydrobenzamid.‎

Riferimento per il libraio : 59784

‎"LAVOISIER, (ANTOINE-LAURENT) & PIERRE-SIMON DE LAPLACE. - RESPIRATION & COMBUSTION.‎

‎Von dem Verbrennen und Athemholen. (IV Stück von ""Über die Wärme"")‎

‎Helmstädt und Leipzig, J.G. Müllerschen Budhhandlung, 1787. Small 8vo. Orig. printed blue wrappers. In: ""Chemische Annalen...von Lorenz Crell"", 1787, 2. Bd., 7. Stück. Pp. 1-95 (the entire issue (Stúck 7) offered). Lavoisier & La place's paper: pp. 62-94.‎

‎First appearance in German of the fourth part of of the classic joint paper ""Mémoir sur la Chaleur"", published 1783, which contains the section on combustion and respiration.""Few collaborations in the history of science can equal, for the eminence of the two participants, that between the coryphaeus of the Chemical Revolution, Antoine-Laurent Lavoisier, and his collegue in the Royal Academy of Science, the mathematical physicist, Pierre-Simon de Laplace. We remember this collaboration chiefly, if not solely, for the famous investigatuon on Calorimetry, which resulted in one of the aknowledged classics of science, the joint ""Mémoir sur la Chaleur"", pulished in the Histoire et Mémoires of the Academy of Sciences in 1784.""(Henry Guerlac).‎

Riferimento per il libraio : 44791

‎"LAVOISIER, (ANTOINE-LAURENT). - EMBODYING LAVOISIER'S QUANTITATIVE METHOD, HIS FIRST PAPER.‎

‎Analyse du Gypse. (1765).‎

‎Paris, L'Imprimerie Royale, 1768. 4to. Extract from ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome V. With tittlepage to vol. 5. Pp. 341-357. Clean and fine.‎

‎First appearance of Lavoisier's FIRST PUBLISHED CHEMICAL PAPER introducing quantitative methods in chemistry, and in which he for the first time brought a hydrometer in use to measure the specific gravities of components of a chemical solutions. Lavoisier defended the originality of his approach in the following words: ""It is to the art of combination that the knowledge of the specific gravities of fluids can bring most light. This aspect of chemistry is much less advanced than we thought, we possess barely the rudiments of it."" ""This first paper, which in so many respects embodies the quantitative methods Lavoisier was to employ in his later work, had in fact been largely anticipated by others, notably by Marggraf, who had already discovered the composition of gypsum and shown that it contained water (phlegm). Yet Lavoisier’s work was more through" and his paper, his first contribution to the Academy of Sciences (read to the Academy on 25 February 1765), appeared in 1768. (The paper offered). - Lavoisier’s earliest chemical investigation, his study of gypsum, was mineralogical in character" begun in the autumn of 1764, it was intended as the first paper in a series devoted to the analysis of mineral substances. This systematic inventory was to be carried out, not by the method of J. H. Pott ""who exposed minerals to the action of fire"" but by reactions in solution, by the ""wet way."" ""I have tried to copy nature,"" Lavoisier wrote. ""Water, this almost universal solvent ""is the cheif agent she employs"" it is also the one I have adopted in my work."" Using a hydrometer, he determined with the care the solubility of different samples of gypsum (samples of selenite, or lapis specularis, some supplied by Guettard and Rouelle). He made similar measurements with calcined gypsum(plaster of paris). Analysis convinced him that this gypsum was a neutral salt, a compound of vitriolic (sulfuric) acid and a calcareous or chalky base. Not content with having shown by analysis the composition of the gypsum, Lavoisier completed his proof by a synthesis following, as he said, the way that nature had formed the gypsum. He further demonstrated that gypsum, when transformed by strong heating into plaster of Paris, gives off a vapor, which he showed to be pure water, making up about a quarter of the weight of gypsum. Conversely, when plaster of Paris is mixed with water and turns into a solid mass, it avidly combines with water. Using the expression first coined by Rouelle, he called this the ""water of crystallization."" (DSB).Partington III, pp. 378-79. -‎

Riferimento per il libraio : 44940

‎"LAVOISIER, ANTOINE-LAURENT ET AL. - THE SALPETRE COMMISSION.‎

‎Histoire de ce qui s'est passé relativement au Prix proposé sur la Formation du Salpêtre. (+) Recueil de Mémoires et de Pièces sur la Formation et la Fabrication du Salpêtre. (2 parts).‎

‎Paris, Moutard, 1786. 4to. Contemp. full sprinckled calf with 5 raised bands on spine. Richly gilt compartments, title-and tomelabels with gilt lettering. A small nich to leather at middle of front hinge. A small tear to rear hinge at upper compartment. ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome XI. (4),198,682 pp. Wide-margined, fine and clean.‎

‎This collective work is the French Academy's monumental treatise on the chemistry and the production of Salpetre, a topic of great importence for the war-industry in making gunpowder. The volume contains papers by Macquer, Darcy, Lavoisier, Sage, Baumé, de la Rochefoucault, Clouer and an anonymous report on experiments made in England (CAVENDISH'S) on the composition of nitric acid....papers by Cornette, Thouvenel and Thouvenel, Le Lorgna, Gavinet and Chevrand, de Beunie, Romme, Clouet and Lavoisier, de Rochefoucault etc.(Partington III, p. 467 n).""The Regie des Poudres et Salpetres had the monopoly of refining salpetre from 1775 until it was suppressed during the Revolution. Until his retirement in 1791 the leading light in it was Lavoisier, who seems to have written its publications. - In 1775 the Academy offered a prize of 4000 livres for a process for procuring an abundant supply of salpetre,the announcement being written by Lavoisier. Altogether 66 papers were received and the prize was finally awarded in 1782 to the brothers Thouvenel, who gave a full account of nitre plantations. The material was published in 1786 in one volume by the Academy. In it Lavoisier describes 'Experiences sur la décomposition du nitre par le charbon' said to have been made in 1784...""(Partington III, pp. 466 ff.).""Peu de temps après que Lavoisier eut été nommé régisseur des poudres et salpêtres, il suggéra à Turgot, alors contrôleur général des finances, l'idée de charger l'Académie des sciences de décerner un prix au meilleur mémoire sur la formation du salpêtre. 'Académie nomma une commission dont Lavoisier fut le rapporteur " c'est lui qui examina tous les mémoires présentés au concours, en fit l'analyse, et, quand l'Académie publia en 1786 un volume contenant l'histoire du prix du salpêtre et les mémoires présentés au concours, c'est encore Lavoisier qui en fut le rédacteur. Ce volume fait partie du Recueil des mémoires de mathématiques et de physique présentés à l'Académie royale des sciences par divers savants et lus dans ses assemblées (tome XI, contenant le Recueil des mémoires sur la formation et la fabrication du salpêtre, à Paris, de l'imprimerie Moutard, DCCLXXXVI). Sauf les mémoires des concurrents et un mémoire du duc de la Rochefoucault, ce volume est tout entier de la main de Lavoisier. Il est formé de deux parties la première est intitulée : Histoire de ce qui s'est passé relativement au prix proposé sur la formation du salpêtre " la seconde partie comprend les mémoires présentés au concours ainsi que des mémoires de Lavoisier et Clouet, un mémoire sans signature, mais qui appartient à Lavoisier (le manuscrit autographe a été conservé), le mémoire du duc de La Rochefoucault, et les expériences de Lavoisier sur la décomposition du nitre par le charbon.""‎

Riferimento per il libraio : 44923

‎"LAVOISIER, ANTOINE-LAURENT, ET AL.‎

‎Mémoire Sur la Combustion du Fer. (Etc. etc. etc.). - [THE LAVOISIERIAN REVOLUTION IN CHEMISTRY]‎

‎Paris, Rue et Hotel Serpente, 1789. 8vo. Contemporary half calf. Gilt spine, slightly rubbed, light wear to spine ends. ""Annales de Chimie: ou Recueil de Mémoires Concernant la Chimie et les Arts qui en Dépendent. Par MM. de Morveau, Lavoisier, Monge, Berthollet, De Fourcroy, le Baron de Dietrich, Hassenfratz & Adet."" Tome Premier. (2),312,(2) pp. The entire volume offered. Some scattered brownspots. A small wormtract to upper margin of ab. 20 leaves, no loss of letters.‎

‎First edition of the first volume of this very important journal, founded by Lavoisier and his friends, collaborating in establishing THE NEW SCIENCE of Anti-Phlogistic theory in chemistry. Crosland (in ""The two French Revolutions"" and ""The Imperial Despotism of Oxygen"") claims that for a clear understanding of the CHEMICAL REVOLUTION, THE NEW JOURNAL of ANNALES DE CHIMIE can be rightly considered as FUNDAMENTAL as the ""Traite élementaire de Chimie"".""A third and most important instrument was the establishment of a new scientific journal, edited - and dominated - by the votaries of the ""new chemistry"". The first number of this journal of the Annales de chimie appeared in 1789, the year of the Revolution. Its editors were besides Lavoisier, his early disciples - Guyton, Berthollet, Fourcroy, and Monge - with the addition of three new recruits: the Strassbourf metallurgist the Baron de Dietrich, Jean-henri Hssenfratz and Pierre Auguste Adet.""(DSB VIII, p.81).LAVOISIER'S paper on COMBUSTION (pp. 19-30) contains his important interpretation of the phenomena of combustion in air, making the fundamental distinction between burning and combustion. By this ""Lavoisier gave to the study of chemistry a new life, a new direction and a wider outlook."" (Alexander Findley).""The Lavoisierian memoir on combustion of iron stood out among the large number of interesting papers discussed in the first volume of the ""Annales"". In his account Lavoisier sustained that in nature, combustion without flames did occur. Thus, he clarified the distinction between ordinary burning and combustion: an issue on which the majority of traditional chemists were confused. The need for accuracy and precision in laboratory practices was emphasised in his study, as it was a means to determine quantities rather than assuming them.""(Angela Bandinelli in ""Scientific Communication During a Major Change ...Empirical Research: Annales de chimie vs Obs. sur la physique/ Journal de physique (1789-1803)).The volume furthermore contains important papers by: Adet, Fourcroy (3 papers), Berthollet (3 papers), Chaptal, Hassenfratz (5 papers), Baron de Dietrich (2 papers), Klaproth (2 papers), Girtanner, Dollfuss, Bonz de Ettingen, Crell, De Morveau.‎

Riferimento per il libraio : 43634

‎"LAVOISIER, ANTOINE-LAURENT.‎

‎Mémoire sur les diffrenetes méthodes proposées pour déterminer le titre ou la qualité du Salpêtre brut, sur la volatilisation de ce sel, qui a lieu par la simple ébullition, et sur les changemens qu'il paroît convenable de fairee aux operations us...‎

‎(Paris, Rue et Hôtel Serpente, 1792-93). No wrappers. In: ""Annales de Chimie, ou Recueil de Mémoires concernant la Chemie"" Tome 15 (December issue) + Tome 16 (January issue), entire issues offered. Pp. 224-266, pp. 297-316 (Resultat..), pp. 3-39 a. 1 large folded table.‎

‎First printing of two importent memoirson the Salpetre industry.‎

Riferimento per il libraio : 46020

‎"LAVOISIER, ANTOINE-LAURENT.‎

‎Über die Verbindung des Säurestoffs mit Eisen. (2 Theile).‎

‎(Helmstädt und Leipzig, J.G. Müllerschen Budhhandlung), 1789. Small 8vo. Orig. printed blue wrappers. In: ""Chemische Annalen...von Lorenz Crell"", 1789, Drittes und Viertes Stück. Pp. 194-288 a. pp. 289-384 (2 entire issues offerd). Lavoisier's papers pp. 260-275 a. pp. 323-29.‎

‎First German edition of Lavoisier's ""Mémoire sur l'union du Principe oxygine avec le Fer"", published in the memoires of the French Academy, 1785 in which he concluded that commercial iron contains carbon, that metals are combustible bodies, whichcan combine with other combustible bodies such as sulphur, phosphorus and carbon.Partington III, pp. 458-59.‎

Riferimento per il libraio : 44846

‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - THE ELEMENT GALLIUM.‎

‎Sur un nouveau Métal, le Gallium.‎

‎Paris, G. Masson, 1877. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 5e Series - Tome 10. 576 pp. a. 2 folded engraved plates. (The entire volume offered). Lecoq de Boisbaudran's paper: pp. 100-141 a. 1 handcoloured engraved plate (showing the two spectral lines of gallium).‎

‎First appearance of a milestone paper in chemistry and physics in which the author describes how he found the new element Gallium by analyzing spectral lines which he observed on a Pyrenea blende sample, the emission lines corresponding to the eka-aluminum that was predicted by Mendeleev in 1871 and he subsequently isolated the element by electrolysis. This was the first element discovered by use of the spark spectrum. In his discovery of the new element Boisbaudran was not guided by the predictions of Mendeleev, but only by his own law of spectra.""Boisbaudran ranks with Bunsen, Kirchhoff, and Crookes as one of the founders of the science of spectroscopy.""(Weeks).""Lecoq de Boisbaudran announced his discovery (by spectroscopic analysis) of the new element gallium. Mendeleev had first predicted its existence and had named it eka-aluminium. The discovery was made in the author's private laboratory, in a specimen of zinc blende from the Pierrefitte mine in the Angelès Valley in the Hautes Pyrénées. He describes how on the evening of 27 August 1875 he detected the existence of this new element, which he named ""gallium"" in honor of France (Gallia). The plate shows the two spectral lines of gallium, which are distinct from those of other elements (indium and potassium) in the same region of the spectrum. A month later he ""performed in Wurtz's laboratory in Paris....a series of experiments to prove that gallium...is a true element""(Weeks). he discusses how he eventually isloated small amounts of pure metallic gallium and determined its physical and chemical properties. The paper (the paper offered) first describes gallium compounds (e.g., ammonium gallium alum,, chloride, oxide, and sulphate).""(Roy G. Neville II, p. 29).Partington IV,897. - Weeks p. 215 ff.The volume contains other nptable papers EDMUND BECQUEREL ""Sur l'Observation de la partie infra-rouge du spectre solaire, au moyen des effets de phosphorescence"", pp. 5-12, 8 papers by MARCELLIN BERTHELOT.‎

Riferimento per il libraio : 44235

‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - ANNOUNCING THE DISCOVERY OF THE ELEMENT GALLIUM.‎

‎Caractéres chimique et spectroscopiques d'un nouveau métal, le Gallium, découvert dans une blende de la mine de Pierrefitte, vallée d'Argelès (Pyrénées). (Séance du Lundi 20 Septembre 1875). (+) Sur quelques propriétés dy gallium. (Séance du Lundi 6...‎

‎(Paris, Gauthier-Villars), 1875. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 81, No 12 and No 23. Pp. (485-) 508 a. (1065-) 1148. (2 entire issues offered). Boisbaudran's papers: pp. 493-495 a. pp. 1100-1105.‎

‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - THE DISCOVERY OF SAMARIUM.‎

‎Nouvelles raies spectrales observées dans des substances extraites de la samarskite.‎

‎(Paris, Gauthier-Villars), 1879. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 88, No 7. Pp. (313-) 352. (Entire issue offered). Boisbaudran's paper: pp. 322-324.‎

‎First apperance of the paper in which Boisbaudran revealed his discovery of a new earth that precipitated had a unique spectrum. De Boisbaudran named it samaria, after the mineral from which it was derived. The mineral samarskite is named for a Russian mining engineer and Chief of Staff - Corps of Mining Engineers, Colonel Vasili Evgrafovich Samarsky-Bykhovets.""Samarium was discovered by French chemist Paul Émile Lecoq de Boisbaudran in 1879. He noticed in his research that impure didymium (praseodymium and neodymium with other impurities), seemed to contain more than just didymium based on spectroscopic work on various rare-earth minerals. When Lecoq de Boisbaudran added ammonium hydroxide to a concentrate prepared from the mineral samarskite he observed a precipitate that formed before the didymium (Weeks and Leicester, 1968, p. 685). Partington ""Breakthroughs"" 1879 C.‎

Riferimento per il libraio : 47275

‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - THE ELEMENT GALLIUM.‎

‎Sur un nouveau Métal, le Gallium.‎

‎Paris, G. Masson, 1877. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 5e Series - Tome 10. 576 pp. a. 2 folded engraved plates. (The entire volume offered). Lecoq de Boisbaudran's paper: pp. 100-141 a. 1 handcoloured engraved plate (showing the two spectral lines of gallium).‎

‎"LEMERY, (LOUIS).‎

‎Reflexions et Observations diverses sur une vegetation Chimique de fer, & sur quelques experiences faites à cette occasion avec differentes liquueurs & alkalines, & avec differens métaux substituez au Fer.‎

‎(Paris, Jean Boudot, 1708). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1707"". Pp. 199-219 a. 1 folded engrave dplate.‎

‎"LEWIS, WILHELM.‎

‎Physikalisch=chymische Abhandlungen und Versuche, zur Beförderung der Künste, Handwerke und Manufakturen. Aus dem Englischen übersetzet, und mit Anmerkungen versehen von Johann Georg Krünitz. (Erster Theil).‎

‎Berlin, Arnold Wever, 1764. Later blank boards. A small paperlabel has been pasted over ""Erster Theil"" on titlepage. The spectacular, large folded engraved frontispiece by P.S. Cabot showing a chemical laboratory, well equipped). (16),576 pp. and 4 large folded engraved plates. Internally fine and clean.‎

‎"LIBBY, W.F. (WILLARD FRANK).‎

‎Four Papers: 1. (Together with Arnold, J.R.) Radiocarbon Dates. - 2. Radiocarbon Dates, II. - 3. Chicago Radiocarbon Dates, III - 4. Chicago Radiocarbon Dates, IV. - [THE DISCOVERY OF RADIOCARBON DATING]‎

‎Chicago, Illinois: Institute for Nuclear Studies, University of Chicago, 1951. 1951, 1952, 1954. 4to. All 4 with orig. printed wrappers, being offprints from ""Science"" (Vol. 113, 114,116 a. 119). - 10 pp., 6 pp., 9,(1) pp., 6 pp. Light marginal stain to the first work.‎

‎"LIEBIG, JUSTUS - HIS ETHER-THEORY.‎

‎Mémoire sur la Constitution de l'Ether et de ses Combinaisons.‎

‎Paris, Crochard, 1833. No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, Tome 55, Cahier 2. Pp. 113-224 a. 1 folded plate. (Entire issue offered). Liebig's paper: pp. 113-156. Titlepage to volume 55.‎

‎First printing of Liebig's importent paper in which he expounds his Ether-theory.""Shortly afterward Liebig discovered an important new compound which he thought revealed another fatal flaw in Dumas’s theory. Since 1831, when Dobereiner had sent him an “ether-like” fluid obtained from the oxidation of alcohol, Liebig had tried several times to identify the resultant compounds. Dobereiner maintained that the fluid contained an ""oxygen ether."" In 1833 Liebig found two distinct compounds present. One of them, Dobereiner’s oxygen ether, he examined more thoroughly and renamed acetal.""‎

Riferimento per il libraio : 45028

‎"LIEBIG, JUSTUS von.‎

‎Die Thier=Chemie oder die organische Chemie in ihrer Anwendung auf Physiologie und Pathologie. Zweite unveränderte Auflage.‎

‎Braunschweig, Vieweg und Sohn, 1843. Contemp. hcalf. Slightly rubbed, corners bumped. XVIII,344,(1) pp. Brownspotted throughout, mainly marginal.‎

‎Scarce second edition of a groundbreaking work in animal physiology. ""...for Liebig had provided one of the first comprehnsive pictures of the overall meaning of the ceaseless chemical exchanges which form an integral part of the vital process. A few men adopted it as a guide for further investigation, and Bishoff and Voit based the field of energy metabolism on Liebig's ideas."" (F.L. Holmes in DSB). - Duveen p.359 - Not in Neville.‎

Riferimento per il libraio : 35674

‎"LIEBIG, JUSTUS von. - THE ETHER THEORY OF LIEBIG.‎

‎Mémoire sur la Constitution de l'Ether et de ses Combinaisons.‎

‎Paris, Crochard, 1833. No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2 Séries, Tome 55, Cahier 2. pp. 113-224. Entire issue offered. Liebig's paper: pp. 113-156. Scattered brownspots.‎

‎First appearance in French - the paper was published at the same time in ""Annalen der Pharmacie"" and in""Annalen der Physik und Chemie. Hrsg.von Poggendorff""- of an importent paper on Radicals in which he regards alcohol as a hydrate of the ethyl radical and ether as the oxide of the ethyl radical. The paper is also relevant for the discovery and development of ether as an anaesthesia.‎

Riferimento per il libraio : 49628

‎"LIEBIG, JUSTUS von. - THE ETHER THEORY OF LIEBIG.‎

‎Ueber die Constitution des Aethers und seiner Verbindungen.‎

‎Leipzig, Johann Ambrosius Barth, 1834. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", 1. Bd. (31. Bd. der Reihe), No. 21, 22 a. 23. Pp. 321-368. Liebig's paper: Titlepage to 1. Bd. pp. 321-360. Clean and fine.‎

‎First appearance - the paper was published at the same time in ""Annalen der Pharmacie"" - of an importent paper on Radicals in which he regards alcohol as a hydrate of the ethyl radical and ether as the oxide of the ethyl radical. The paper is also relevant for the discovery and development of ether as an anaesthesia.‎

Riferimento per il libraio : 43361

‎"LIEBIG, JUSTUS.‎

‎Chemiske Breve. I dansk Oversættelse. Andet med Forfatterens Skrift ""den nyopfundne Patentgjødning"" forøgede Oplag.‎

‎Kbhvn., 1846. Samt. hldrbd. med rygforgyldning. False svage. XII,302 pp. Brunplettet.‎

Riferimento per il libraio : 20697

‎"LIEBIG, JUSTUS.‎

‎Chemiske Breve. I dansk Oversættelse. Andet med Forfatterens Skrift ""den nyopfundne Patentgjødning"" forøgede Oplag.‎

‎Kbhvn., 1846. Samt. hldrbd. med rygforgyldning. False svage. XII,302 pp. Brunplettet.‎