XXXII ÉCHANGE DE PUBLICATIONS 
Royal Geographical Society . 
Linnean Society . 
Zoological Society. . 
Entomological Society. . 
Geological Society . 
Journal Nature. 
Philosophical Society . : 
Literary and Philosophical Society . 
Societé des Sciences naturelles. 
Literary and Philosophical Society . 
Biological Society. . 
Royal Society . 
Royal Physical Society . ka 
R. College of Physicians (Laboratory) 
Geological Society . 
Royal Irish Academy . 
Royal Dublin Society . 
Royal Geological Society 
Smithsonian Institution . 
U. S. Geological Survey. 
U. S. National Museum . 
Department of Agriculture . 
Philosophical Society. 
American Academy of Arts and Sciences. . 
Boston Society of Natural History 
Association for Advancement of Sciences. 
Museum of Harvard College . 
Academy of Arts and Sciences . 
Peabody Academy of Sciences . 
Essex Institute. JA 
Rochester Academy of Sciences 
Academy of Arts and Sciences . 
American Journal. 
Missouri’s Botanical Garden . 
LONDRES. 
Id. 
Id. 
Id. 
Id. 
Id. 
CAMBRIDGE. 
MANCHESTER 
BIRMINGHAM. 
LIVERPOOL. 
Id. 
EDIMBOURG. 
Id. 
Id. 
Id. 
DUBLIN. 
Id. 
Id. 
WASHINGTON. 
Id. 
Id. 
Id. 
Id. 
BosTon. 
Id. 
SALEM. 
CAMBRIDGE. 
Id. 
SALEM. 
Id. 
ROCHESTER. 
NEW-HAVEN. 
Id. 
ST-Louis. 
