732 INDEX. 



Page. 



Astro-physiciil ObHcrvatory, correspoiidenfe of , . 18 



details ofliiiauces x.:xiii, xxxix 



' expend itiires for xxxix 



need of permanent building 32 



operations during 1893 60 



secretary's report on 30 



spectrum investigations at 7, 31 



Astro-physics, investigations in, by S. P. Langley 7 



Atmosphere {see also Air, and atmospheric air), earth, tliickness of 521 



influence of moiintaius ou 272 



Miechauical effects of 535 



mechanics of, by Cleveland Abbe 69 



proportion of moisture in 541 



secondary ingredients of ^ 541 



solar, density of 131 



study of, in relation to life 13 



Atmospheric air, composition of 521 



dust in, instrument for testing 226 



Hodgkins prizes for discoveries in regard to 11 



papers on 11 



in relation to biology 11 



liquefied and frozen 187 



electricity, Franklin experiments in 13 



gases, chemical effects of 527 



phenomena at Mont Blanc Observatory 263 



pressure, effects on living beings 535 



refraction, effects of 83 



variations, experiments upon 6 



Atoms and sunbeams, by Sir Eobert Ball 121 



Atwater, W. O., papers on organic chemistry 250 



Austen, Col. Godwin, surveys by 405 



Australia, geographical knowledge of 408 



Austria-Hungary, exchange agency 50 



transmissions to 51, 52, 53 



Avars, migrations of 581 



B. 



Babylon, powerful influence of 695 



Babylonian language, origin of 688" 



origin of Egyptian culture 98 



Baikie. Dr., on River Niger 398 



Bailey, H. B., & Co., courtesies from 49 



Baily, E. H. S., on Indian sense of taste 603 



Baird, Prof., on migration of birds 47.3, 474 



Baker, Frank, report on Zoological Park 54-59 



Baker, .1. A., donation to Zoological Park 58 



Ball, Sir Robert, <m atoms and sunbeauis 121 



climatic variatioi r 350 



wanderings of tiit, north pole 75 



Baltazzi, X., courtesies from 49 



Bandelier, Adolf, on Mexican weapons 632 



Bauy uls, France, marine biological station at f'OS 



Barnard, Prof., telescopic photographs by 73 



Bartels, Dr. Max, on history of medicine 621 



