SCIENTIFIC SOCIETIES: Fall Meeting American Chemical Society, Philadelphia, Pa., September 2 to 6, 19I9; The Interallied Chemical Conference; Fifth National Exposition of Chemical Industries, Coliseum and First Regiment Armory, Chicago, September 22 to 27, 1919; The Association of British Chemical Manufacturers; Calendar of Meetings; The Chemical Societies in New York City; Chemical Warfare Service Research Division Reunion; The Franklin Institute Edward Longstreth Medal of Merit; American Institute of Mining and Metallurgical Engineers