( XXI ) 
AMERIQUE. 
ÉTATS-UNIS. 
American Association for advancement of sciences. 
Austln. — Texas Academy of sciences. 
Baltimore. — American Journal of mathematics. (Johns Hopkins 
University ) 
Boston. — American Academy of arts and sciences. 
Society of natural History. 
Madison. — Wisconsin Academy of sciences, letters and arts. 
Aew-Haveu. — Connecticut Academy o farts and sciences. 
!%ew-York. — Academy of sciences. 
Muséum of natural history. 
American Mathematical Society. 
Pliiladclphic. — Academy of natural sciences. 
American philosophical Society. 
Wagner Free Institule of sciences. 
l*orllaiid. — Matural History Society. 
Bochester. — Academy of sciences. 
^iaiut*L.ouis, llo. — Botunical Gurden. 
Malciii. — Essex Institute. 
Kau-Fraucisco. — Californian .\cademy of sciences. 
At ashiuston. — Smith.sonian Institution. 
CANADA. 
Ottawa. — Geological Survey of Canada. 
Commission de géologie et d’histoire naturelle du Canada. 
Toronto. — Canadiun Institute. 
CHILI. 
Santiago. — Société scientifigue du Chili 
