index. 767 



Hydrogen, liquid, density of 260 



Dewar on I,;i 



solid, method of making •_>;,! 261 



Dewar on 251 261 



I. 



Icebergs, antarctic, characteristics of ;;x| 



Illumination, development of, Hough on 193 500 



Improvement of human breed, ( ralton on 523 



Incandescent mantles I.;t 



Income and expenditure, resolution concerning \ v 



Smithsonian, present inadequacy of \\iv 



Indian collections in National Museum 



Indians, American, types of -4 • ; l 17:'. 



South American, collections from 56 



traps of Hi I 17-". 



Virginia, study of >>7 



Insects, increase in collections of "> v 



papers on 137, 667 



International catalogue of scientific literature. xxi,6,23, 127 



exchanges, appropriations for vxvii, lvii, 9 



correspondents of 



countries participating in I I H > 



European agencies of 88 



foreign government depositories of 103 



Government documents sent by 96 



number of parcels sent by 19 



operations of 49, 85 104 



receipts and disbursements of xxvn 



Secretary's report on • v 



weight of transmissions by s,; 



Intramercurial planets, photographs of 120 



Ionized air, researches by Barus in 



atmosphere, observations on 



gases, researches in 



Iroquois Indians, study of 



Irrigated and irrigable areas 410,411,412,41 



Irrigation, cost of 



laws regulating 



F. H. Newell on 4 " 7 '-■"• 



Isopods of North America, Miss Richardson on 



Italy, exchange service with 



Ives's process of color photography 



J. 



Japan, exchange service with 



shells from 



Janssen, on progress in aeronautics 



Janssen's astronomical revolver 



Jefferson, President, on meteorites 



Jenks, Albert E., Indian researches by 



Jennings, O. P., collections from 



Jewish ceremonial objects 



