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acetic acid afterwards alcohol ammonia aniline application atom of hydrogen atomic weights atoms of carbon became benzene Berzelius BIOGRAPHICAL NOTES born Bunsen carbon atoms carbon compounds carbon dioxide Chem chemical affinity chemical combination Chemical Society chemists chlorine College colour constitution containing decomposition density died discovered discovery dissociation dissolved doctrine Dumas electric electrolyte elements ether ethyl example experimental experiments facts Faraday fessor formula gases Gerhardt hydrate hypothesis idea Journ Kekule known laboratory large number later Lavoisier Liebig liquid Memorial Lecture metals method molecular molecules nature nitric acid nitrogen Obituary observed obtained organic chemistry organic compounds oxide oxygen Paris Pasteur physical polarisation pressure Proc produced Professor of Chemistry properties proportions quantity radicles radio-active radium recognised relation researches Royal salts sodium solid solution specific heat substances sulphuric acid supposed tartaric tartaric acid temperature theory tion University valency vapour volume
Page 9 - Newton generalized the law of attraction into a statement that every particle of matter in the universe attracts every other particle with a force which varies directly as the product of their masses and inversely as the square of the distance between them; and he thence deduced the law of attraction for spherical shells of constant density.
Page 61 - whiteness, and all grey colours between white and black, may be compounded of colours," and that " all homogeneal light has its proper colour answering to its degree of refrangibility, and that colour cannot be changed by reflections or refractions.
Page 267 - Passing to the consideration of electro-chemical decomposition, it appears to me that the effect is produced by an internal corpuscular action, exerted according to the direction of the electric current, and that it is due to a force either superadded to, or giving direction to the ordinary chemical affinity of the bodies present.
Page ii - INTRODUCTION TO THE STUDY OF CHEMICAL PHILOSOPHY. The Principles of Theoretical and Systematic Chemistry. With 5 Illustrations. Fcp. 8vo., 5s. With ANSWERS to Problems. Fcp. 8vo., y. 6d. PRACTICAL CHEMISTRY. The principles of Qualitative Analysis. Fcp. 8vo. , 1s. 6d. WATTS DICTIONARY OF CHEMISTRY.
Page 310 - On partially liquefying carbonic acid by pressure alone, and gradually raising at the same time the temperature to 88° F., the surface of demarcation between the liquid and gas became fainter, lost its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering strias throughout ita entire mass. At temperatures above 88...
Page 160 - Without offering any hypothesis regarding the cause of this symmetrical grouping of atoms, it is sufficiently evident, from the examples just given, that such a tendency or law prevails, and that, no matter what the character of the uniting atoms may be, the combining power of the attracting element, if I may be allowed the term, is always satisfied by the same number of these atoms.
Page 162 - On the Constitution and Metamorphoses of Chemical Compounds, and on the Chemical Nature of Carbon...
Page 8 - Chemical analysis and synthesis go no farther than to the separation of particles one from another, and to their reunion. No new creation or destruction of matter is within the reach of chemical agency. We might as well attempt to introduce a new planet into the solar system, or to annihilate one already in existence, as to create or destroy a particle of hydrogen.
Page 311 - ... disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering striae throughout its entire mass. At temperatures above 88°, no apparent liquefaction of carbonic acid or separation into two distinct forms of matter could be effected, even when- a pressure of 300 or 400 atmospheres was applied. Nitrous oxide gave analogous results...