836 INDEX. 



Page. 



Ward, Lester F., in charge of fossil plants 39 



on flora of Washington and vicinity 41 



"War Department, exchanges of 63 



AYar Eecords Office, exchanges of 63 



AVarnerke, Leon, on color photography 84 



"Warttnann, Dr. A., on globular lightning 100 



AA T asserbach, T., donation to Zoological Park 71 



Water, danger from contaminated 350 



drinking, disease germs in 243 



molecules of 217 



penetrated by air 142 



plant absorption and emission of 328 



proportion of, to land 217 



river, impurities in 302 



Watkins, J. E., curator of technological collections 39 



Watrous, F., donation to Zoological Park 73 



"Watson, Arnold, cited 449 



Wave length of physiological light 425 



Weather Bureau, exchanges of 63 



effect of auroral displays on 311 



solar gravitation on 312 



forecasting, combined system of 341 



forecasts 336 



influence on insect pests 306 



relation to disease 335 



Weber, Dr. Leonhard, electrical observations by 96 



Weeden, W. C, donation to Zoological Park 73 



AVeisman, A., on theory of heredity 484, 485 



AVelch, Dr. AA^illiam H., on evolution of scientific laboratories 493 



AA 7 elling, James Clark x 



biography of xii, 33 



death of xi, 2 



resolutions in memory of 35 



AA r ertheim's experiments with polarized light 131 



Wheeler, Joseph, regent x, xi 



White, Andrew D., regent x, xi 



AVhite Cross Line, courtesies from 64 



White, David, custodian of Paleozoic plants 39 



AVhite, Dr. C. A., made " associate in paleontology " 21 



AA hitney, Professor, death of 18 



Whooping cough, causes and prevention of 331 



AViedemann, E., on luminescence 121 



AA T iener, Otto, on stationary light waves 124 



AViener's researches on color photography 126 



AVigand, A., cited 488 



AA'ilfarth, cited 171 



AAllkes exploring expedition 528 



AA 7 illfield, W., donation to Zoological Park 72 



AVilliams, Mrs. A. B., loan to Zoological Park 72 



AA'illiams, John, on compulsory voyages 527 



Willis, Rev. Robert 729 



AVilson, Dr. E. B., on Naples table committee 17 



AA'ilson, electrical experiments by 91 



AA T ilson, AVilliam L., member of "Establishment" 1 



Wind force and health in large towns 294 



AVinds, air purified by „ 190 



