Peb., 1921
T H E J O U R N A L O F I,VDUSTRIAL A N D E N G I N E E R I N G C H E M I S T R Y
Coolidge X-ray tube was the earliest result of this investigation a n d has practically displaced all other types of X-ray tubes. It has made possible many results not otherwise obtainable, as, for instance, the development of a truly portable X-ray outfit. Another result was the pliotron, the first real power tube suitable for radio transmission. The pliotron practically created radiotelephony, and has revolutionized radiotelegraphy. Other types of these tubes resulting from this investigation are the dynatron, magnetron, pliodynatron, etc. The contributions of the laboratory to pure science have been numerous, varied, and important, as is indicated by the titles taken from the list of laboratory publications: Factors Affecting Relation between Photo-electric Current and Illumination Structure of the Atom Theory and Use of the Molecular Gage Theory of Unimolecular Reaction Velocities Absorption and Scattering of X-Rays New Method of X-Ray Chemical Analysis New Method of X-Ray Crystal Analysis Roentgen-Ray Spectra High Frequency Spectrum of Tungsten Arrangement of Electron in Atoms and Molecules Chemical Reactions a t Low Pressures Constitution and Fundamental Properties of Solids and Liquids Dissociation of Hydrogen into Atoms Effect of Space Charge and Residual Gases on Thermionic Currents in High Vacuum Evaporation, Condensation, and Reflection of Gas Molecules E'undamental Phenomena in Electron Tubes Having Tungsten Cathodes Isomorphism, Isosterism, and Covalence Mechanism of the Surface Phenomena of Flotation Octet Theory of Valence and Its Applications with Special Reference t o the Organic Nitrogen Compounds Properties of the Electron as Derived from the Chemical Properties of the Elements .Structure of the Helium Atom Structure of the Hydrogen Molecule and the Hydrogen Ion
Dr. Whitney is a trustee of the Albany Medical College and .of Union College, and a member of the Corporation of Massachusetts Institute of Technology. He is a member of the U. S. Naval Consulting Board, National Research Council, American Chemical Society (president in 1910), American Electrochemical Society (president in 1911), American Institute of Mining and Metallurgical Engineers, American Institute of Electrical Engineers, American Association for the Advancement of Science, American Academy of Arts and Sciences, American Physical Society, and British Institute of Metals. He received the Willard Gibbs M,edal in 1916 and the Chandler Medal in 1920. Dr. Whitney's translation of Le Blanc's textbook of electrochemist.ry is well known. Among the papers which he has personally published are the following : 1-"The Rate of Solution of Solid Substances in Their Own Solutions" (with A. A. Noyes). J . A m . Chem. Soc., 19 (1897), 930. 2-"The Nature of the Change from Violet t o Green in Solutions of Chromium Salts." J . A m . Chem. Soc., 21 (1899), 1075. 3--"The Precipitation of Colloids by Electrolytes" (with J. E. Ober). J . A m . Chem. Soc., 23 (1901), 842. 4-"An Investigation of Ammonio-Silver Compounds in Solution" (with A. C. iMelcher). J . Am. Chem. Soc., 25 (1903), 69. 5-"The Corrosion of Iron." J . A m . Chem. Soc., 25 (1903), 394. 6-"Electrolysis of Water." J . Phys. Chem., 7 (1903), 190. 7-"The Migration of Colloids" (with J. C. Blake). J . A m . Chem. Soc., 26 (1904), 1339. 8-"Colloids." Trans. A m . Electrochem. SOL,7 (1905). 225. 9--"Arcs." Trans. A m . Electrochem. Soc., 7 (1905), 291. 10--"Suspensions in Dilute Alkaline Solutions" (with Alonzo Straw). J . A m . Chem. Soc., 29 (1907), 325. 11-"Organization of Industrial Research." J . A m . Chem. SOC., 82 (1910), 71. 12-"Some Chemistry of Light" (Presidential Address, American Chemical Society, Dec. 29, 1909). J . Am. Chem. SOC.,32 (1910). 147. 13--"Alloys." A m . Foundrymen's Assoc., 1910. 14--"Chemistry of Luminous Sources." Johns Hopkins Univ., 1910. Lccfurcson;Illum
