698 INDEX. 
Page. 
Howell, D. J., made topographical survey of Zodlogical Park ......-------- “18 
prepared plans for bridge in Zodlogical Park ....-...-------- 49 
Hubbard, Gardiner G., paper on evolution of commerce. .__...-------------- 647 
Huggins, William, paper on celestial spectroscopy -----.---.---.------------ 69 
Hungarian Society of Natural History, donations to library by .----..-.--- ic 59 
Himsany, coverumentallexchia mle si walt lise eats tee ee 47 
WEP MNS MIS NONE KONO coSsoacese sobanena cece Hoo Googe osene daiacc 45, 47 
Hupa vocabulary in preparation by Jeremiah Curtin. ...........----------- 36 
Hutchins, Prof. C. C., services of, in connection with astro-physical observa- 
HOLY oe OSes Cores Seer eee ee See eels Be oe Oe at ere Se ere tere eae re ees 8 
Hydrocraphie:Ofhiee; exchanve relations) wathess- sss e2525--5 2a eee eee 41 
Hydrogen, density of, apparatus for determinations of-........-....--------- 6 
Hystrix cristata added to Zoological Park -.....-.--..-...----------------- 52 
It 
lipyana added to-Zoclogieal: Park = 2228 252 2 oh icet cate mee ene hee ee 52 
apst,added> to: ZoclogicaliParks-s-c..2 25-5. eee ee Seen eee eee 52 
Minstrations invannualireport) tor L89l ist Of eee sees ee ae ee ee eee Vil 
improvements in-ZoologicaliParks..-\ 5S. l2i22. obese eee sees one See eee 22-23 
Incidentalvexpenditunestotelnstibithloneses senses e eee eae ae eee SKONGUL 
Incidentals paid on account of International Exchanges.......------------- 40 
LE-VAVINeMts ON CACCOUMpOhe ee eee ee ee rae eee eee ee XXII 
Inclosure; to: Zoological: Park! fen. sso tee Se eee ee eee eo eer 24 
Income of Institution, appropriation Ofes=--- 225 2>--2ess eee eee eee XII 
Incressejon library, byvexchanges/s------s-= een eae a eee eee eee oS eee 12, 53 
Museum-corresponden¢e <2-2-2 secon. et ec oeee See oe eee ee 16 
“Index: Medicus/7exchancemelations swithieoss es ae eres enone eee eee 41 
Imdia,-covernmentalioxchaneesnwalth see. eae oe ace oe eee eee ee eee eee AT 
Indian Affairs, Office of, exchange relations with ......---.--.------------- 41 
Commissioners, Bureau of, exchange relations with ..---..--------- 41 
village on Choptank River, examination of ..---....--.-------:+:-- 30 
Individuals in correspondence with Exchange Bureau.........-...---.--.- 38, 39, 40 
Industries collection accessions tO == -- asses e eae eee ae eee 18 
Inman’ Steamship Company, srant free freight_-.2--22-- 22-222. -2 2-2-2 ---- 43 
Insects aquatics dithcnltiesineihewitevotens=s-— seer ee se ae eee eee ees 349 
collectionioftaccessions#b0lssss255 cere tone eee oe ee eee 19 
Institut National de Géographie, Brussels, donations to library by --------- 59 
Instruments employed by astro-physical observatory ...--.---------.------ a 
Intermational-exchanpes = ss s-2 ss jens ee ee eee eee eee nee eee ee O11 O OOM 
report of Executive Committee on .---..XXI, XXIII, XXXVII 
service (see Exchanges, International). 
Interstate Commerce Commission, exchange relations with ......---.------- 41 
Interior Department, exchange relations with.------...-------=-=---+------ 41 
Invertebrates, collection iofiaccessionSit0ssse-e5 552 > ae eee ee eee eee eee 19 
Invested tundsof themMnstitubion=s24-c=5-- - sees aan eee eee eee ee 3 
Investigations upon chemical compounds, by Dr. Wolcott Gibbs ...--..---- 6 
oayconeas) \poteY jopie IOscolnf hates IBUHR se. 5 cob ae se aeadassssuS cosmeoeescee Ss 38, 39 
Island exchange agency for xs: Seka aoe ees aati es ae eee ee ee 44 
Islands Hipuisbokasaéfn, the exchange agent for Iceland ........-..---.---- 44 
Italian Exchange Bureau, donations to library by--.----------.---.--------- 58 
Italy, exchancve'acency for) 22 652222 scar Sa meat ee orice icici 44 
covermmentalioxchanees withees =.= see sees see se eee eee 47 
Hydrographic Office of, donations to library by---..----..------------ 58 
transmissions Made: toes Ye dae Sao cele ee ~ oe oe eee Eee ee 46, 47 
