INDEX. 657 



Page. 



Argentine Observatory, founding of 93 



Argon, discovery of 10, 71, 242, 249 



properties of 243 



quantity in upper air 313 



Arizona, cliff villages of 75, 76, 79 



Fewke'a archseological work in 20, 601 



Armenian publications, gift of 13 



Armstrong, H. E., paper by 76, 77 



Arsenic, experiments upon 267 



Arthropods, life histories of 500 



Ascending currents of air, experiments with 193 



Aspects of American Astronomy, by Simon Newcomb 85 



Assistant Secretary, method of appointment of xiii 



Assmann, M., balloon explorations by 301, 302, 314 



Assmann, R. , on climate of Germany 385 



Astral light, in modern hermetism 214 



Astrology, early belief in 208 



Astronomers, early American 90 



important work of 326 



Astronomical observatories, American, dates of founding 108 



photography 93 



Astronomy, aspects of American, by Simon Newcomb 85 



beginnings of American, Holden on 101 



economic value of 87 



evolution of satellites 109 



importance of study of 326 



Smithsonian work in 78 



study of, in colonial period 89 



Astrophysical observatory, apparatus in 67 



appropriations for xliv, 6 



expenditures for xxxii 



report of work in 66 



Secretary's report on 27 



S. P. Langley's history of 77 



Atlantic Transport Line, courtesies from 51 



Atlas Steamship Line, courtesies from '. 51 



Atmosphere, actinic constitution of 11, 71 



decomposition of, by electric spark 8 



primitive, composition of 354 



lower, unstable equilibrium in 186 



upper, composition of 304, 313 



explorations of 301 



Atmospheric actinometry, memoir on 11, 71 



electricity, collection of 317 



Schuster on 75 



Atomic weights, F. W. Clarke on 74 



recalculation of - 11 



sequence of 248 



Atoms, division of - - 166 



Audubon, quotation from 24 



Aurelia and salpa, study of 497 



Australia, geographical work in 393 



Austrium, discovery of 240 



Ava meteorite 233 



Avery, Robert Stanton, bequest of xi, 7 



SM 97 42 



