98 



REPORT ON THE OPERATIONS OF EXCHANGES. 



Oberlin : 



Oberlin College 1 



Urbaiia : 



Central Ohio Scientific Association. 1 



Yellow Springs : 



Antiocli College 1 



PENNSYLVANIA. 



Allegheny: 



Allegheny Observatory 10 



Bethlehem : 



Lehigh University 4 



Carlisle : 



Carlisle Society of Literatnre 1 



Easton : 



Institute of Mining Engineers 11 



Lafayette College 3 



Pardee Science School 1 



Germantown : 

 Friends Free Library and Reading 



Room 1 



Harrisbiirg : 

 Medical Society of Pennsylvania. . . 1 

 Second Geological Survey of Penn- 

 sylvania 9 



State Agricultural Society 1 



State Library 2 



Haverford : 



Haverford College Observatory 3 



Media : 

 Delaware County Institute of Sci- 

 ence 1 



Philadelphia : 



Academy of Fine Arts 3 



Academy of Natural Sciences 199 



American Entomological Society.. 31 



American Naturalist 6 



American Pharmaceutical Associa- 

 tion 11 



American Philosophical Society . . . 154 



Board of Health 1 



Board of Public Education 3 



Board of State Charities 3 



Board of Trade 4 



Central High School 2 



Central High School Observatory . . 2 



Corporation of the city 2 



Franklin Institute 58 



Geological Survey of Pennsylvania. 3 



Girard College 1 



Historical Society of Pennsylvania. 14 



, Library Company 5 



Library of Pennsylvania Hospital. 3 



Medical Times 14 



Mercantile Library 3 



Museum 1 



Numismatic and Antiquarian So- 

 ciety 3 



Observatory 1 



Observatory of Girard College 4 



Penn Monthly 2 



Philadelphia House of Refuge 2 



Philadelphia Press 1 



Philomathean Society 1 



Polytechnic Bulletin 1 



State Medical Society 1 



University of Pennsylvania 5 



Wagner Free Institute 13 



Zoological Society 19 



Pittsburgh : 



Mercantile Library 2 



Wilkes Barre : 

 Wyoming Historical and Geolog- 

 ical Society 1 



RHODE ISLAND. 



Providence : 



American Naturalist 13 



Athenajum 2 



Brown University 4 



City Registrar's OfBce 1 



Rhode Island Historical Society.. - 5 



Seagrave Observatory 1 



State Registrar of Births, Marriages, 



and Deaths 1 



SOUTH CAROLINA. 



Charleston : 

 Literary and Philosophical Society 



of South Carolina I 



South Carolina Historical Society 1 



TENNESSEE. 



Knoxville : 

 Philomathesian Society 1 



Lebanon : 

 Cumberland University 1 



Nashville : 



Private observatory 1 



Tennessee Historical Society 1 



TEXAS. 



Chapel Hill : 

 Soul6 University 1 



VERMONT. 



Barnet : 

 Vermont Historical and Antiqua- 

 rian Society 1 



Burlington : 



Fletcher Free Library 1 



University 1 



Castloton : 

 Orleans County Society of Natural 



Sciences 40 



