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1826réf. 59047Paris Crochard 1826. Contemp. hcloth. Gilt lettering on spine. In: "Annales de Chimie et de Physique par Gay-Lussac et Arago" tome 32. 448 pp. 3 folded engraved plates. Balard's paper: pp. 337-84. Entire volume offered with original memoirs by Savart Berzelius Humboldt Arago Poisson Liebig Dumas et al. First printing of Balard's famous memoire in which he records his discovery of the new element Bromine le brôme. While he was studying the flora of a salt marsh he notized a deposit of sodium saulfate which had crystallized out in a pan containing mother liquer from common salts. "In an attempt to find a use for the waste liquers he performed a number of experiments and notized that when certain reagents were added the mother liquer bacame brown. His investigation of this phenomenon.ked to the remarkable discovery.Weeks p. 264. "The discovery of a new chemical element by a young and obscure provincial pharmacist caused a sensation in Paris. Balard's achievemnt was recognized by the Academie des Sciences and he was awarded a medal by the Royal Society of London."DSB I p. 416. "The discovery of bromine is a very importent acquisition to chemistry and gives M. Balrad honorable rank inthe career of the sciences. We are of the opinion that this young chemist is every way worthy of the encouragement of the Academy and we have the honour to propose that his memoir shall be printed in the "Recueil des Savants Étrangers" The report from the French Academy signed by Vaugelin Thenard and Gay-Lussac. hardcover
1874réf. 49327Leipzig Johann Ambrosius Barth 1874. 8vo. Contemp. hcalf. 5 raised bands gilt spine and gilt lettering to spine. A few scratches to spine. Small stamp on verso of first -and general- titlepage. In: "Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff" Sechste Reihe Bd. 3 = Poggendorff Bd. 153. X636 pp. 4 plates. Entire volume offered. Braun's paper: pp. 556-563. First printing of Brown's importent paper in which he described his discovery of a semiconductor diode noting that electrical currents flows freely in only one direction at the contact between a metal point and a galena crystal."In 1874 Braun published the results of his research on mineral metal sulfides. He found that these crystals conducted electric currents in only one direction. This information was important in electrical research and in measuring another property of substances the electrical conductivity but Braun’s discovery did not have immediate practical application. In the early twentieth century the principle that Braun had discovered was employed in crystal radio receivers."DSB.The Nobel Prize in Physics 1909 was awarded jointly to Guglielmo Marconi and Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy". hardcover
1810réf. 46377Paris J. Klostermann 1810. Contemp. hcalf. Spine gilt. Slightly rubbed. A few scratches to binding. Small stamps on verso of titlepage.In: "Annales de Chimie ou Recueil de Mémoires concernant la Chemie" Tome 75. 336 pp. a. 2 folded engraved plates. Some scattered brownspots. The papers: pp. 27-77 129-175 256-263 264-273 274-289 a. 290-316. First French version of Davy's "The Bakerian Lecture for 1809. On some new Electrochemical Researches on various Objects particularly the metallic Bodies from the Alkalies and Earth and on some Combinations of Hydrogene. Read November 16 1809." together with the controversy papers by Davy and Gay-Lussac & Thenard."Mr. Davy having from the commencement of his electro-chemical researches communicated the several steps of his progress to the Society The Royal Society takes the present opportunity of reporting the results of his further inquiries under four principal heads. First on the nature of the metals of the fixed alkalis. Second on the nature of Hydrogen and composition of ammonia. Thirdly on the metals of the earth; and Fourthly he makes a comparison between the antiphlogistic doctrine and a modified phlogistic hypothesis."Abstract. He further gives arguments for considering potassium and sodium which he discovered in 1808 as a element.""Gay-Lussac had a slight rivalry between himself and the creation scientist Sir Humphry Davy. Davy was chemically preparing Potassium and Sodium through an electrical current and this made Gay-Lussac and Thénard envious of his success. They too decided to perform the same task but they had no battery at their disposal as Davy had so they had to form another way to chemically prepare the two elements. In 1808 they used a red-hot iron fused to potash the water-soluble form of a manufactured salt containing potassium to perform this task a method that Davy admitted had its advantageous qualities. Gay-Lussac and Thénard were successful in preparing Potassium and continued to make a full analysis of its chemical properties and began to use it for their own experiments. In 1809 Davy performed the same task using it to reduce Boron in Boracic acid." unknown