OF DENISON UNIVERSITY. 
7 
Library School, Prof. Dewey, 
Amherst College, Science Department, 
Cambridge Philosophical Society, 
Royal Irish Academy, 
Ufficio Geologico, 
Comite Geologique, 
I nstitute des Mines, 
New York Academy of Science, 
Prof. J. M. Kemp, Cornell University, 
Patent Office Library, 
R. Accademia Delle Scienze Di Torino, 
Societa Reale Di Napoli, 
Albany, New York. 
Amherst, Massachusetts. 
Cambridge, England. 
Dublin, Ireland. 
Rome, Italy. 
St. Petersburg, Russia. 
St. Petersburg, Russia. 
New York City, New York. 
Ithaca, New York. 
London, England. 
Torino, Italy. 
Naples, Italy. 
National Academy of Science, 
Washington, District Columbia. 
Others who desire to make exchanges with the Association for its 
Bulletin, will please address the Permanent Secretary of the Denison 
Scientific Association, Denison University, Granville, Ohio. 
