[PHYSICS]. ROSCOE, Henry E. Spectrum Analysis. Six Lectures Delivered in 1868 Before the Society of Apothecaries of London. New York, 1869. 8o. Plates. Modern cloth. FIRST AMERICAN EDITION. -- ROSCOE. Another edition. London, 1885. 8o. Plates. Original cloth. Fourth edition. -- STEINMETZ, Charles Proteus. Four Lectures on Relativity and Space. New York and London, 1923. 8o. Original cloth. Later impression. -- THOMSON, J.J. Conduction of Electricity Through Glass. Cambridge, 1903. Original cloth. -- RUSSELL, J. Scott. Report on Waves, Made to the Meetings of the British Association in 1842-43. London, 1845. 4o. Plates. Contemporary half morocco. -- ANDERSON, Carl D. "The Positive Electron." In: The Physical Review. Vol.42, no.6 (15 March 1933), pp.491-494. 4o. Original printed wrappers. -- Another copy.-- ARRHENIUS, Svante. Recherches sur la conductibilité galvanique des électrolytes. Stockholm, 1884. 8o. Plates. Disbound. -- DAVISSON, C.J. Diffraction of Electrons by a Crystal of Nickel. Offprint from: The Physical Review. Second series, vol.30. (December 1927). 8o. Original printed wrappers. -- DAVISSON. Are Elctrons Waves? Offprint from: The Journal of the Franklin Institute. Vol.25 (May 1928). 8o. Original printed wrappers. -- DAVISSON. The Conception and Demonstration of Electron Waves. Offprint from: The Bell System Technical Journal. Vol.11 (October 1932). 8o. Original printed wrappers. -- DAVISSON. Electrons and Quanta. Offprint from: The Bell System Technical Journal. Vol.8 (April 1929). 8o. Original printed wrappers. -- Another copy. -- DAVISSON. The Wave Properties of Electrons. Offprint from: Proceedings of the American Philosophical Society. Vol.59, no.4 (July 1930). 8o. Original printed wrappers. -- Another edition. -- DAVISSON. The Scattering of Electrons by Crystals. Offprint from: The Scientific Monthly. Vol.28 (January 1929). 4o. Original printed wrappers. -- HAHN, Otto and Fritz STRASSMAN. Über das Zerplatzen des Urankernes durch langsame Neutronen. Offprint from: Abhandlungen der preubischen Akademie der Wissenschaften. No. 12. Berlin, 1939. 4o. Original printed wrappers. FIRST EDITION. -- HAHN and STRASSMAN. Die chemische Abscheidung der bei der Spaltung des Urans entstehenden Elemente und Atomarten. Offprint from: Abhandlungen der preubischen Akademie der Wissenschaften. No.12. Berlin, 1944. 4o. Original printed wrappers. FIRST EDITION. -- HAHN, STRASSMAN, and Hans GÖTTE. Einiges über die experimentelle Entwirrung der bei der Spaltung des Urans auftretenden Elemente und Atomarten. Offprint from: Abhandlungen der preubischen Akademie der Wissenschaften. No.3. Berlin, 1942. 4o. Original printed wrappers. FIRST EDITION. -- COMPTON, Arthur Holly. "A Quantum Theory of the Scattering of X-rays by Light Elements." In: The Physical Review. Vol.21, no.5 (May 1923). Lancaster, 1923. 4o. Original printed wrappers. -- and 25 other works, 8o and 4o, condition varies.