( XXI ) 
AMERIQUE. 
ÉTATS-UNIS. 
Austin. — Texas Academy of sciences. 
Baltimore. — American Journal of mathematics, (Johns Hopkins 
University.) 
Boston. — American Academy of arts and sciences. 
Society of natural History. 
Cambridge (Mass.). — Museum of comparative Zoology. 
Halifax. — Vova Scotian Institute of Natural Science. 
Madison. — Wisconsin Academy of sciences, letters and arts. 
New-Haven. — Conneclicul Academy of arls and sciences. 
New-York. — Academy of sciences. 
Museum of nalural history. 
American Mathematical Society. 
Philadelphie. — Academy of natural sciences. 
American philosophical Society. 
Wagner Free Institute of sciences. 
Portland. — Natural History Society. 
Rochester. — Academy of sciences. 
Saint-Louis, Mo. — Botanical Garden. 
Salem. — Essex Institute. 
American Association for advancement of sciences. 
San-Franceisco. — Californian Academy of sciences. 
Washington. — Smithsonian Institution. 
Carnegie Institution. 
CANADA. 
Ottawa. — Geological Survey of Canada. 
Commission de géologie et d’histoire naturelle du Canuda. 
Toronto. — Canadian Institute. 
CHILI. 
Santiago. — Société scientifique du Chili, 
