ISTITUTI SCIENTIFICI CORRISPONDENTI 



al principio dell' anno 1901. 



AMERICA DEL NORD. 



i. University of tlie State of New York — Albany N. Y. 



2. Maryland Geological Survey — Baltimore. 



3. American Academy of Arts and Sciences — Boston. 



4. Boston Society of Natural History — Boston. 



5. Buffalo Society of Natural Sciences — BulTalo N. Y\ U. S. of A. 

 G. Davenport Academy of Natural Sciences — Davenport Jowa. 



7. Indiana Academy of Science — Indianopolis. 



8. Jowa Geological Survey — Des Moines (Jowa). 



9. Nova Scotian Institute of Science — Halifax. 



10. Wisconsin Academy of Sciences, Arts and Letters — Madison 



(AVisconsin). 



11. Minnesota Academy of Natural Sciences — Minneapolis. 



12. Connecticut Academy of Arts and Sciences — New-Haven. 



13. Geological and Natural History Survey of Canada — Ottawa. 



14. Academy of Natural Sciences — Philadelphia. 



15. American Philosophical Society — Philadelphia. 

 IG. Wagner Free Institute of Science — Philadelphia. 



17. Geological Society of America — Rochester N. Y. U. S. A. 



18. California Academy of Sciences — San Francisco. 



19. California State Mininir Bureau — San Francisco, 



