REPORT ON THE OPERATIONS OF EXCHANGES. 



93 



Observatory of Yale College 5 



Sheffield Scientific School 5 



State Board of Agriculture , 1 



Winchester Observatory 1 



Yale College 32 



Newington: 



Private Observatory 1 



DELAWARE. 



Wilmington : 



Delaware Historical Society 1 



DISTKICT OF COLUMBIA. 



Georgetown : 



Georgetown College '5 



Observatory of Georgetown College. 2 

 Washington : 



Agricultural Department 124 



Anthropological Society 6 



Army Medical Museum 4 



Belgian Legation 3 



Board of Health 15 



Botanic Garden 1 



Census Bureau 49 



Chinese Legation 20 



Chief Signal Office, U. S. Army.... 67 



Coast and Geodetic Survey 74 



Columbian University 2 



Cosmos Club 1 



Education, Bureau of 57 



Engineer Bureau, U. S. Army 38 



Entomological Commission 16 



Fish Commission 15 



French Legation 1 



Geological Survey of the Territo- 

 ries 261 



Geographical Surveys West of the 



100th Meridian 39 



Hydrographic Office 12 



Index Medicus 4 



Indian Commissioners 1 



Interior Department (exclusive of 



bureaus) 17 



Laud Office 34 



Library of Congress 216 



Light-House Board 4 



Marine Hospital Service 5 



Medical Association (American) ... 55 



Medicine and Surgery, Bureau of.. 1 



Mint Bureau 1 



National Academy of Sciences 152 



National Museum 82 



Nautical Almanac office 14 



Naval Observatory 99 



Navigation, Bureau of 1 



Navy Department (exclusive of bu- 

 reaus) 2 



Ordnance Bureau, U. S. Army 3 



Patent Office 68 



Smithsonian Institution 1091 



State Department 20 



Statistical Bureau of Treasury De- 

 partment 51 



Surgeon-General, U. S. Army 127 



Treasury Department (exclusive of 



bureaus) 11 



War Department (exclusive of bu- 

 reaus) 11 



Washington Philosophical Society. 20 



FLORIDA. 



Saint Augustine : 

 Historical Society of Florida 1 



GEORGIA. 



Savannah : 



Historical Society of Georgia 3 



State Library 1 



ILLINOIS. 



Aledo : 

 Mercer County Scientific Associa- 

 tion 1 



Carbondale : 

 Southern Hlinois Normal Univer- 

 sity 1 



Chicago : 



Academy of Sciences 76 



American Antiquarian 2 



Astronomical Society 1 



Board of Trade 1 



Chicago Times 1 



Corporation of the city of Chicago. 2 



Dearborn Observatory 10 



Historical Society 2 



Museum of Natural History 2 



Natural History Society 1 



Public Library 8 



University of Chicago 1 



Galesburg : 

 Lombard University 1 



Madison : 

 American Pomological Society 6 



Normal : 

 State Laboratory of Natural His- 

 tory 6 



Rockford : 

 Rockford Scientific Society 1 



Rock Island : 

 Augnstana College 1 



