XXI 



Boston, Massachussets. — Society of Natural History. 

 Brooklyn, N.-Y. — Institute of arts and sciences. 

 Chicago, Illinois. — Academy of Sciences. 

 Indianapolis. Indiana. — Indiana Academy of Sciences. 

 Ithaca, N.-Y. — New-York State Collège of Agriculture. 

 Lawrence, Kansas. — University of Kansas. 

 Madison, Wisconsin. — Wisconsin Geological and Natural history 

 Survey. 



Minneapolis, Minnesota. — University of Minnesota. 

 New- York, New- York. — American Muséum of Natural History- 

 Library. 



Philadelphie, Pensylvanie. — Academy of Natural Sciences. 



Portland, Maine. — Portland Society of Natural History. 



Riverside, Californie: — Citrus Experiment Station (Library). 



Saint-Louis, Missouri. — Missouri >Botanical Garden. 



Urbana, Illinois. — University of Urbana (Library). 



Washington, Columbia. — Smithsonian Institution'. 



Washington, Columbia. — U. S. Geological Survey. • 



Washington, Columbia. — U. S. National Muséum. 



Washington, Columbia. — U. S. Department of Agriculture. Divi- 

 sion of Entomology. 



Washington, Columbia. — U. S. Department of Agriculture. — 

 Bureau of Biological Survey. 



Washington. — U. S. Department of Agriculture. Library. 



Washington, Columbia. — U.S. Commission ofFish andFisheries. 



Mexique 



Mexico. — Instituto geologico de Mexico. 

 Mexico. — Sociedad cientifica " Antonio Alzate ". 

 Mexico. — Sociedad geologica Mexicana. 



AMÉRIQUE DU SUD 



Argentine (République) 



Buenos-Ayres. — Museo nacional de Historia natural. — Casilla 

 del Correo, 470. 



Buenos-Ayres. — Sociedad argentina de Sciencias naturales. — 

 Peru 222. 



La Plata. — Museo de Historia natural de la Plata, 



