‎Chemistry‎

‎"DUMAS, JEAN BAPTISTE et POLYDORE BOULLAY. -‎

‎Mémoire sur les Ethers composés.‎

‎(Paris, Crochard, 1828). No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", tome 37 (prem. cahier), pp. 5-112. (Entire issue offered). Dumas & Boullay's paper: pp. 15-53. Clean and fine.‎

‎"DUMAS, JEAN BAPTISTE-ANDRE & J.S. STAS. - THE ATOMIC WEIGHT OF CARBON ESTABLISHED.‎

‎Recherches sur la véritable poids atomiques du carbone. (Lu à l'Academie des Sciences, le 21 décembre 1840).‎

‎Paris, Fortin, Masson et Cie, 1841. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 3e Series - Tome 1. 512 pp. a. 3 folded engraved plates (showing experimental apparatus).Small stamp to verso of plates. (The entire volume offered). Dumas & Stas' paper: pp. 1-59. Clean and fine.‎

‎"DUMAS, JEAN BAPTISTE-ANDRE & PIERRE PELLETIER.‎

‎Recherches sur la Composition élémentaire et sur quelques propriétes caractéristiques des bases salifiables organiques. - [TOWARDS A CLASSIFICATION OF ORGANIC COMPOUNDS.]‎

‎Paris, Crochard, 1823. 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 24. Entire volume offered. Paper label pasted on to top of spine. Two stamps to verso of title-page and stamos to verso of all plates. A few light occassional brownspots, otherwise a fine copy. Pp. 163-191. [Entire volume: 448 pp. + 4 folded plates.‎

‎"DUMAS, JEAN BAPTISTE-ANDRE & PIERRE PELLETIER. - TOWARDS A CLASSIFICATION OF ORGANIC COMPOUNDS.‎

‎Recherches sur la Composition élémentaire et sur quelques propriétes caractéristiques des bases salifiables organiques.‎

‎(Paris, Crochard, 1823). Without wrappers. In: ""Annales de Chimie et de Physique, par Gay-Lussac et Arago"", tome 24, Sec. Series, Cahier 2. Pp. 163-191. (Entire issue offered pp. 113-223.‎

‎"DUPORTEL, A.S.‎

‎Mémoire sur l'état actuel de la distillation du vin en France, et sur les moyens d'améliorer la distillation des liqueurs vineuses de tous le pays. (+) Suite du Mémoire...‎

‎Paris, J. Klostermann fils, 1811. Contemp. hcalf. Spine gilt and with gilt lettering. Wear to top of spine. Slightly rubbed. Stamp to verso of titlepage. In: ""Annales de Chimie, ou Recueil de Mémoires concernant la Chemie"" Tome 77. 344 pp. and 5 engraved folded plates. Some scattered brownspots. (Entire volume offered). Duportel's paper: pp. 178-224 a. pp. 225-258. and 5 large plates describing different destillation apparatus.‎

‎"DUTOUR, (ETIENNE FRANCOIS).‎

‎Exposition d'une Theorie sur le renouvellement de l'Air dans l'Eau, & sur la desunion des parties des matières solubles opérée par les dissolvans.‎

‎(Paris, Imprimerie Royale, 1755). 4to. Extract from ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome II. Pp. 477-500. 2 textillustrations.‎

‎"DUTROCHET, RENÉ JOACHIM HENRI.‎

‎De l'Endosmose des Acides. - [ A CLASSIC WORK ON OSMOSIS]‎

‎Paris, Crochard, 1835. 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 60. Entire volume offered. Some scattered brownspots, other fine with no institutional stamps. Dutrochet's paper: pp. 337-368. [Entire volume: 448 pp.].‎

‎"DUTROCHET, RENÉ JOACHIM HENRI. - A CLASSIC WORK ON OSMOSIS.‎

‎De l'Endosmose des Acides.‎

‎(Paris, Crochard, 1835). No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", 2e Series, tome 60, Cahier 4. Pp. 337-448 (entire issue offered). With htitle to vol. 60. Dutrochet's paper: pp. 337-368.‎

‎"DUTROCHET, RENÉ JOACHIM HENRI. - OSMOSIS DISCOVERED.‎

‎Nouvelles Observations sur l'Endosmose et l'Exosmose, et sur la cause de ce double phénomène.‎

‎Paris, Crochard, 1827. Without wrappers. In: Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", Tome 35 (last issue). Halftitle to vol. 35. Pp. 337-400. Dutrochet's paper: pp. 393-400. Some browning to halftitle. Some scattred brownspots.‎

‎"ELLER VON BROCKHAUSEN, JOHANN THEODOR.‎

‎Sur la Nature et les Proprietés de L'Eau. (+) Sur les Phenomenes qui se manifestent, lorsqu'on dissout toutes sortes de Sels dans L'Eau commune separément. (2 papers).‎

‎(Berlin, Haude et Spener, 1752). 4to. No wrappers, as issued in ""Memoires de L'Academie Royale des Sciences et Belles Lettres"" tome VI (1750), pp. 67-82 and pp. 83-97 and with the section-titlepage ""Memoires ....Classe de Philosophie Experimentale"".‎

‎First printing of Eller's most importent chemical works.""A really importent investigation is Eller's on the soluability of salts in water. He found that most salts cause a fall in temperature when dissolved in water, but some...cause a rise in temperature....He discusses the theory of solution - the interpostion of salt particles between water particles, attraction, etc...""(Partington II, pp. 716-17).When Frederick the Great became king in 1740, he made Eller his personal physician and appointed him director of the Berlin Academy of Sciences. Eller’s wife died in 1751, and in 1753 he married Henrietta Catherine Rosen. In 1755 Frederick made Eller a privy councillor, a position he held until his death. Eller held the highest positions in Prussia, professor of anatomy, dean to the Collegium Medico-Chirurgicum, director of the Berlin Academy of Sciences and physician-in-ordinary to Frederick the Great. Together with Georg Ernst Stahl he was responsible for laying the foundation for all subsequent developments in medical services in Prussia.‎

Bookseller reference : 44742

‎"ELLER, (JOHANN THEODOR).‎

‎Essai sur L'origine et la Generation des Metaux.‎

‎(Berlin, Haude et Spener, 1749). 4to. No wrappers, as issued in ""Memoires de L'Academie Royale des Sciences et Belles Lettres"" tome IX, pp. 1-50.‎

‎First printing of Elle's small history of chemistry, in which he gives an historical review of chemical theories from the Greek period, with special emphasis on the viewa of Becher and Stahl and the theory of phlogiston. Eller held the highest positions in Prussia, professor of anatomy, dean to the Collegium Medico-Chirurgicum, director of the Berlin Academy of Sciences and physician-in-ordinary to Frederick the Great. Together with Georg Ernst Stahl he was responsible for laying the foundation for all subsequent developments in medical services in Prussia. (Partington II:pp. 716-17).‎

Bookseller reference : 43017

‎"ELLER, JOHANN THEODOR.‎

‎Dissertation sur les Elemens ou Premiers Principes des Corps. (2 Parts).‎

‎(Berlin, Ambroise Haude, 1748). 4to. No wrappers, as issued in ""Mémoires de l'Academie des Sciences et Belles Lettres"", tome II, pp. 3-48.‎

‎First edition. ""Eller's influence on chemical theory has never been considered of great importence, yet it is known that Lavoisier read Eller's papers, especially those dealing with the elements, and his early views have an interesting resemblance to Eller's ideas about heat and fluidity."" (DSB).‎

Bookseller reference : 36220

‎"ERCKER, LAZARUS (+) BEWARD, CHRISTIAN.‎

‎Aula Subterranea domina dominantium subdita subditorum (+) Interpres phraseologiae metallurgicae. - [“THE MOST AUTHORITATIVE CONTEMPORARY WORK ON 16TH-CENTURY METTALURGY AND ASSAYING”]‎

‎Franckfurt, Zunner, 1684 (+) Franckfurt am Mayn, Zunner, 1684. 4to (215 x 185 mm). Recently bound in a magnificent pastiche-binding of brown half calf with five raised bands and gilt red leather title-label to elaborately gilt spine. Vellum corners. The frontispiece/engraved half title trimmed with loss to upper and lower part of the plate. Closed tear to outer margin. Title-page closely trimmed with loss to first line of title. A few leaves with marginal repairs. Light occassional browning throughout, otherwise internally nice and clean. (14), 220, 123, (5), 68 pp. + folded frontispiece/engraved half title. 41 woodcut in text depicting various processes of mining and metallurgy.‎

‎Second edition, including Berward’s lexicon of mining terms, of Ercker’s seminal and beautifully illustrated work on mining and metallurgy – of immense importance to and influence upon the subject throughout the 16th and 17th centuries. Its detailed approach has made it a key reference in the history of science and technology, and its practical focus contributed to the economic development of mining regions. ""Ercker's treatise is the most authoritative contemporary work on 16th-century metallurgy and assaying. Ercker gave a systematic review of methods of testing alloys and minerals and of obtaining and refining various metals, as well as methods of manufacturing acids, salts and other chemical compounds, including saltpeter. He described the apparatus and laboratory equipment used in metallurgy and assaying and gave a detailed account of laboratory methods, all of which he himself had used."" (Norman) ""Erker's Beschreibung may be regarded as the first manual of analytical and metallurgical chemistry. The only one of Ercker’s works to contain many drawings, it presents a systematic review of the methods of testing alloys and minerals of silver, gold, copper, antimony, mercury, bismuth, and lead"" of obtaining and refining these metals, as well as of obtaining acids, salts, and other compounds. The last chapter is devoted to saltpeter. Ercker's account of the fact that zinc precipitates other metals from solutions is to be found only in the 1684 and later editions"" (DSB). “Considering the importance of Ercker’s tratise it is remarkable how little is on record about him. He was inspector-general of the mine of Hungary, Transylvania, and the Tyrol, which position he held under three consecutive emperors in the sixteenth century. He book was highly prized at the time, for it was a record of practical experiences, and was not burdened with theories and hypotheses. (Ferguson). Ferguson 1, 244. (The 1736-edition).Duveen, p. 195.‎

Bookseller reference : 61343

‎"FARADAY, M. (MICHAEL)‎

‎On the mutual action of sulphuric acid and naphthaline, and on a new acid produced. Read February 16, 1826.‎

‎(London, W.Nicol, 1826). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1826 - Part II. Pp. 140-162.‎

‎First apperance of the importent paper in which Faraday found the correct formula for naphthalene.‎

Bookseller reference : 46065

‎"FARADAY, M. (MICHAEL).‎

‎On fluid Chlorine. Communicated by H. Davy. Read March 13, 1823. (With Davy's Note on the Condensation of Muriatic Acid Gas into the liquid form).‎

‎(London, W. Nicol, 1823). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1823 - Part I. Pp. 160-165. Clean and fine.‎

‎First appearance of this famous paper in which Faraday describes his procedure to obtain liquefaction of chlorine and some of its properties. Faraday made an analysis of chlorine hydrate..., finding the composition... He showed the results to Davy, who suggested that he should heat this compound in a sealed tube. The result was the liquefaction of chlorine, reported in a note at the end of the paper""(Partington IV:p. 105).Parkinson ""Breakthroughs"", 1823 C.The paper comes together with Humphry Davy ""On a new phenomenon of electro-magnetism"", pp. 153-159 and Charles Bell's importent works on the physiology of the eye ""On the Motion of the Eye, in illustration of the uses of the muscles and nerves of the orbit"", pp. 166-186 a. 1 engraved plate. + ""Second Part of the Paper on the nerves of the Orbit"", pp. 289-307.‎

Bookseller reference : 46104

‎"FARADAY, M. (MICHAEL). - THE DISCOVERY AND ISOLATION OF BENZENE.‎

‎On new compounds of carbon and hydrogen, and on certain other products obtained during the decomposition of oil by heat. Read June 16, 1825.‎

‎(London, W. Nicol, 1825). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1825 - Part II. Pp. 440-466. Clean and fine.‎

‎First appearance of this remarkable paper in which Faraday announces his discovery of Benzene. Berzelius described this research as ""without doubt one of the most importent which has enriched chemistry during 1825.""""The first public announcement of the discovery of benzene, the greatest chemical discovery made by Faraday. Originally named by him ""bicaburet of hydrogen"", benzene is the parent substance of all aromatic compounds. It constitutes the basis of thousands of organic compounds, dyes, perfumes, and medicinal products, as well as many polymers and structural materials. The discovery of benzene led to the creation of numerous chemical companies and the manufacture of materials previously unknown. This paper is a thourough study of the physical and chemical properties of benzene.""(Neville I, p. 443). - Parkinson ""Breakthrough"" 1825 C.‎

Bookseller reference : 43119

‎"FARADAY, M. (MICHAEL). - THE FIRST PERFORMED SUBSTITUTION REACTION IN CHEMISTRY.‎

‎On two new compounds of Chlorine and Carbon, and on a new compound of Iodine, Carbon, and Hydrogen. By Mr. Faraday, ChemicalAssistent in the Royal Institution. Read December 21, 1820.‎

‎(London, W. Bulmer and W. Nicol, 1821). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1821 - Part I. Pp. 47-74. Clean and fine.‎

‎First appearance of Faraday's first breakthrough in chemistry as he here synthesized for the first time chloro-carbons.""In 1820 he (Faraday) produced the first known compounds of chlorine and carbon, C2Cl6 and C2Cl4. These compounds had been produced by the substitution of chlorine for hydrogen in ""olefiant gas"", our modern ethylene. This was the first substitution reaction"" such reactions, in the hands of Charles Gerhardt and August Laurent in the 1840's, were to be used as a serious challenge to the dualistic electrochemical theories of J.J. Berzelius."" (DSB IV, p. 531).Parkinson ""Breakthrough"" 1820 C.‎

Bookseller reference : 43117

‎"FARADAY, M. (MICHAEL). - THE LIQUEFACTION OF GASES.‎

‎On the Condensation of several gases into liquids. Read April, 10, 1823.‎

‎(London, W. Nicol, 1823). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1823 - Part II. Pp. 189-198. Clean and fine.‎

‎First appearance of this classical paper in chemistry, Faraday announces his success with the liquefaction of gases, and where he for the first time liquefied sulphur dioxide, hydrogen sylphide, chlorine dioxide, cyanogen, and ammonia.‎

Bookseller reference : 43166

‎"FARADAY, MICHAEL. - ON ELECTRICAL CONDUCTION OF LIQUIDS.‎

‎Experimental Researches in Electricity. Fourth Series. 9. On a new Law of Electric Conduction. 10. On Conducting Power. (Sections 380-449). Recieved April 24, - Read May 23, 1833.‎

‎(London, Richard Taylor, 1833). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1833 - Part II. Pp. 507-522. and 1 textillustration. Fine and clean.‎

‎First appearance of this importent paper in which Faraday announces his discoveries of the conductability of liquids.""The author, while prosecuting his rechearches on electr-chemical decomposition, oberved some phenomena which, appeared to be referable to a general law of electric conduction not hitherto recognized. He found that an electric current from a voltaic battery, which is readily conducted by water, did not pass through ice: even the thinnest film of iice, interposed in the circuit, was sufficient to intercept all electrical influence of such low intensities as that produced, by the voltaic apparatus, although it allows of the transmission of electricity of such high intensity that ecited by the common electrical machine. The author ascertained that a great number of other substances, which are solid at ordinary temperatures, do not conduct the electric current from the volataic battery until they are liquified."" (Abstract).From 1831 to 1852 Michael Faraday published his ""Experimental Researches in Electricity"" in The Philosophical Transactions of the Royal Society. These papers contain not only an impressive series of experimental discoveries, but also a collection of heterodox theoretical concepts on the nature of these phenomena expressed in terms of lines of forces and fields. He published 30 papers in all under this general title.They represents Faraday's most importent work, are classics in both chemistry and physics and are the experimental foundations for Maxwell's electro-magnetic theory of light, using Faraday's concepts of lines of force or tubes of magnetic and electrical forces. His many experiments on the effects of electricity and magnetism presented in these papers lead to the fundamental discoveries of 'induced electricity' (the Farday current), the electronic state of matter, the identity of electricity from different sources, equivalents in electro-chemical decomposition, electrostatic induction, hydro-electricity, diamagnetism, relation of gravity to electricity, atmospheric magnetism and many other.""Among experimental philosophers Faraday holds by universal consent the foremost place. The memoirs in which his discoveries are enshrined will never ceaseto be read with admiration and delight"" and future generations will preserve with an affection not less enduring the personal records and familiar letters, which recall the memory of his humble and unselfish spirit.""(Edmund Whittaker in 'A History of the Theories of Aether and Electricity' p. 197.‎

Bookseller reference : 42241

‎"FARADAY, MICHAEL.. - FARADAY'S DOCTRINE OF THE CONSERVATION OF ENERGY.‎

‎Experimental Researches in Electricity. - Sixteenth Series. 24. On the source of power in the voltaic pile. i. Exiting electrolytes, &c. being conductors of thermo and feeble currents. ii. Inactive conducting circles containing an electrolytic fluid...‎

‎(London, Richard and John E. Taylor, 1840). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1840 - Part I. Pp. 61-91 and 1 engraved plate. + Pp. 93-127. Both papers Clean and fine.‎

‎First appearance of a historical paper in chemistry and physiscs in which Faraday announces his principle, that for all known cases of energy, the energy is not generated, but only transformed. The principle he showed applied to the voltaic cell, and he used it to argue against the so-called contact school in chemistry. The process imagined by the contact school ""would indeed be a creation of power, like no other force in nature"". There is no such thing in the world as ""a pure creation of force"" a production of power without a corresponding exhaustion of something to supply it.""""In his very long paper 'on the source of power in the voltaic pile', divided into two parts (XVI and XVII, 1840), faraday marshalled what he thought was owewhelming evidence against the contact theory in favour of the chemical theory.""(Partington: A History of Chemistry IV: p. 138).From 1831 to 1852 Michael Faraday published his ""Experimental Researches in Electricity"" in The Philosophical Transactions of the Royal Society. These papers contain not only an impressive series of experimental discoveries, but also a collection of heterodox theoretical concepts on the nature of these phenomena expressed in terms of lines of forces and fields. He published 30 papers in all under this general title.They represents Faraday's most importent work, are classics in both chemistry and physics and are the experimental foundations for Maxwell's electro-magnetic theory of light, using Faraday's concepts of lines of force or tubes of magnetic and electrical forces. His many experiments on the effects of electricity and magnetism presented in these papers lead to the fundamental discoveries of 'induced electricity' (the Farday current), the electronic state of matter, the identity of electricity from different sources, equivalents in electro-chemical decomposition, electrostatic induction, hydro-electricity, diamagnetism, relation of gravity to electricity, atmospheric magnetism and many other.""Among experimental philosophers Faraday holds by universal consent the foremost place. The memoirs in which his discoveries are enshrined will never cease to be read with admiration and delight"" and future generations will preserve with an affection not less enduring the personal records and familiar letters, which recall the memory of his humble and unselfish spirit.""(Edmund Whittaker in A History of the Theories of Aether and Electricity).‎

Bookseller reference : 42287

‎"FARADAY, MICHAEL.. - ON LIQUEFACTION OF GASES.‎

‎Historical Statement representing the Liquefaction of Gases.‎

‎(London, John Murray, 1823). Wirhout wrappers as extracted from ""The Quarterly Journal of Science and the Arts. (The Royal Institution of Great Britain)"", vol. 16, pp. 229-240.‎

‎First appearance of this paper, being an historical supplement to his importent discoveries witrh the liquefaction of sulphur dioxide, hydrogen sylphide, chlorine dioxide, cyanogen, and ammonia which he published in the Philosophical Transactions in the same year, 1823.‎

Bookseller reference : 43730

‎"FARADAY, MICHAEL.. - ON LIQUEFACTION OF GASES.‎

‎On the Liquefaction and Solidification of Bodies generally existing as Gases. Received December 19, 1844, - Read January 9, 1845. (+) Note.- Additional remarks respecting the Condensation of Gases. Received February 20, - Read February 20, 1845.‎

‎(London, Richard and John E. Taylor, 1845). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1845 - Part I. Pp. 155-177, 1 textillustr. Clean and fine.‎

‎First appearance of an importent paper in chemistry in which Faraday takes up a renewed analysis his great discoveries from 1823 in relation to his liquefaction of gases under pressure and the relation to temperatures. Faraday did pioneer work on liquifaction of gases.‎

Bookseller reference : 42333

‎"FARADAY, MICHAEL.. - SELF-INDUCTION DISCOVERED AND INVESTIGATED.‎

‎Experimental Researches in Electricity. - Ninth Series. . 15. On the Influence of an Electric Current on itself: - and on the inductive action of Electric Currents generally. (Sections 1048-1118). Received December 18, 1834.- Read January 29, 1835.‎

‎(London, Richard Taylor, 1835). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1835 - Part I. Pp. 41-56., 1 textillustr. Clean and fine.‎

‎First appearance of a historical paper in which Faraday (independent of Henry's discovery of the same phenomena in 1832)discovers SELF-INDUCTION or the ""extra current"" and points out the importent influence it must have in the construction of electr-magnetic machines (electro-motors).""Faraday showed that the powerful momentary current, which was observed when the circuit was interrupted, was really an induced current governed by the same laws as all other induced currents, but with this peculiarity, that the induced and inducing current now flowed in the same circuit. In fact, the current in its steady state establishes in the surrounding region a magnetic field, whose lines of force are linked with the circuit"" and teh removal of these lines of forcewhen the circuit is broken originates an induced current, which reatly reinforces the primary current just before its final extinction.""(Whittaker in ""A History of the Aether and Electricity"")""In the series of experiments which are detailed in this paper, the author inquires into the causes of some remarkable phenomena relating to the action of an electrical current upon itself, under certain circumstances, wherby its intensity is highly exalted, and occasionally increased to ten, twenty, or even fifty times that which it originally possessed.""(Abstract).From 1831 to 1852 Michael Faraday published his ""Experimental Researches in Electricity"" in The Philosophical Transactions of the Royal Society. These papers contain not only an impressive series of experimental discoveries, but also a collection of heterodox theoretical concepts on the nature of these phenomena expressed in terms of lines of forces and fields. He published 30 papers in all under this general title.They represents Faraday's most importent work, are classics in both chemistry and physics and are the experimental foundations for Maxwell's electro-magnetic theory of light, using Faraday's concepts of lines of force or tubes of magnetic and electrical forces. His many experiments on the effects of electricity and magnetism presented in these papers lead to the fundamental discoveries of 'induced electricity' (the Farday current), the electronic state of matter, the identity of electricity from different sources, equivalents in electro-chemical decomposition, electrostatic induction, hydro-electricity, diamagnetism, relation of gravity to electricity, atmospheric magnetism and many other.""Among experimental philosophers Faraday holds by universal consent the foremost place. The memoirs in which his discoveries are enshrined will never ceaseto be read with admiration and delight"" and future generations will preserve with an affection not less enduring the personal records and familiar letters, which recall the memory of his humble and unselfish spirit.""(Edmund Whittaker in A History of the Theories of Aether and Electricity).The paper is reprinted in Magie: A Source Book in Physics p.485 ff.‎

Bookseller reference : 42284

‎"FICK, ADOLF. - HERMANN VON HELMHOLTZ. - FICK'S LAWS OF DIFFUSION AND A CLASSIC WORK IN PHYSIOLOGICAL OPTICS.‎

‎Ueber Diffusion. (Fick). (+ Helmholtz:) Ueber Zusammensetzung von Spectralfarben. (Theilweis vorgetragen in der Zusammenkunft der British Association zu Hull in September 1854).‎

‎Leipzig, Johann Ambrosius Barth, 1855. Without wrappes. In: ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", 94. Bd., No 1 (""Heft"" No 1, 1855). Pp. 1-176 a. 4 folded engraved plates. (Entire issue offered). Titlepage to vol. 94 (small stamp on verso). Fick's paper: pp. 59-86. Helmholtz's paper: pp. 1-28. Clean and fine.‎

‎First appearance of Fick's importent paper in molecular physics in which he annouced his two laws of diffusion.Fick's first law relates the diffusive flux to the concentration field, by postulating that the flux goes from regions of high oncentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative). - Fick's second law predicts how diffusion causes the concentration field to change with time. (Wikipedia).First appearance of HELMHOLTZ'S fundamental paper in physiological optics in which he examined the sensitivity of the eye for the individual elements of the violet end of the spectrum" he was able to detect a whole series of distinct tones of purple: he alters the name 'invisible rays' to that of 'ultra-violet rays'" discussion of the relations of the wavelenghts of complementary colours and the intensity required if the mixture of simple complementarity colours is to produce white. He answered these questions quantatively. ""THE TREATISE (the paper offered), WHICH HAS BEEN FUNDAMENTAL FOR ALL LATER WORK OF THE SAME KIND, concludes with an inquiry into the validity of Newton's Colour Circle, which Helmholtz designates as one of the most brilliant inspirations of that great thinker.""(Leo Koenigsberge ""Hermann von Helmholtz"" pp. 131-133).‎

Bookseller reference : 43859

‎"FONTANA, (FELICE).‎

‎Experiments and Observations on the inflammable Air breathed by various Animals. Read March 11, 1779.‎

‎(London, J. Nichols, 1779). 4to. Extract from ""Philosophical Transactions, of the Royal Society of London."" Vol. 69, Year 1779 - Part II. Pp. 337-361.‎

‎First appearance of the paper by the renowned Italian physiologist, in which Fontana confirmed Scheele's experiment showing that the inflammable air was respirable. In the paper he also discusses the discoveries of Priestly, Cavendish and Scheele.‎

Bookseller reference : 44512