EEPORT ON THE OPERATIONS OF EXCHANGES. 



95 



American Statistical Association .. 14 



American Unitarian Association.. . 1 



Appalachian Mountain Club 1 



Arcliajological Institute of America. 1 



AtlienoBum 3 



Boston Hospital 1 



Boston Post 2 



Boston Public Library 26 



Boston Scientific Society 2 



Boston Society of Natural History. 226 



Bowditch Institution 1 



Bowditch Library 3 



City Library 1 



Commonwealth of Massachusetts.. 1 



Corporation of the city 2 



Handel and Hayden Society 1 



Legislature of Massachusetts 1 



Massachusetts Agricultural College 1 

 Massachusetts Historical and Gene- 

 alogical Society 11 



Massachusetts Horticultural Soci- 

 ety 1 



Massachusetts Institute of Tech- 

 nology 5 



Medical and Surgical Journal 18 



New England Historical and Gen- 

 ealogical Society 2 



Public Free Library 3 



Science Observer 3 



State Board of Agriculture 1 



State Board of Health 7 



State Library 16 



Cambridge : 



American Philological Association. 1 



Atlantic Monthly 1 



Etymological Club ' ' Psyche " 4 



Geological Survey of Massachusetts 1 



Harvard College 48 



Harvard College Observatory..... 19 



Museum of Comparative Zoology.. 93 



Peabody Museum 8 



Cambridgeport : 



Private Observatory 1 



Jamaica Plain : 



Bussey Institution 13 



Salem : 

 American Association for the Ad- 

 vancement of Science 50 



Essex Institute 85 



Peabody Academy 81 



South Had ley: 

 Mount Holyoke Seminary Observa- 

 tory 1 



Williamstowu : 



Astronomical Observatory 1 



Worcester: 

 American Antiquarian Society 11 



MICHIGAJSr. 



Ann Arbor : 



Geological Survey of Michigan 10 



Observatory 9 



Society of Agriculture 2 



University of Michigan 4 



Battle Creek: 



High School Observatory 1 



Coldwater: 



Michigan Library Association 2 



Detroit : 



Historical Society of Michigan 1 



Detroit Observatory 1 



Public Library 1 



State Agricultural Society 3 



Grand Rapids: 



State Agricultural Society 3 



Lansing: 



Lansing Scientific Society 4 



State Agricultural College 1 



State Board of Agriculture 8 



State Board of Health 22 



State Library 2 



State Medical Society 5 



Ypsilanti : 



State Normal School Observatory.. 1 



MINNESOTA. 



Duluth : 

 Scandinavian City Library 1 



Minneapolis: 

 Geological Survey of Minnesota... 1 



Minnesota Academy of Sciences... 7 



University of Minnesota 4 



Northfield : 

 Carloton College Observatory 1 



Saint Paul : 



Academy of Natural Sciences 1 



Chamber of Commerce 1 



Historical Society of Minnesota ... 8 



Minnesota State Library 1 



MISSISSIPPI. 



Oxford : 

 Observatory of the University of 



Mississippi 1 



Jackson : 

 Mississippi State Library 1 



MISSOURI. 



Columbia : 

 Laws Observatory 2 



