BB 44 — 
Berkeley. Universit}’ of California. Department of geology 
Boston. American Academy of arts and sciences. 
Cambridge. Muséum of comparative zoology. 
Chicago. Academy of sciences. 
— Journal of geology. 
Colorado. College studies. 
Colnmbiis. Geological survey of Oliio. 
Denver . Colorado scientific society. 
Indianapolis. Indiana academy of sciences. 
Jefferson. Missouri geological survey. 
Lansing. Michigan academy of sciences. 
Lawrence. Office of Kansas University quaterly. 
Madison. Wisconsin academy of sciences, arts and letters. 
— Wisconsin geological and natural liistory survey. 
Missoula. University of Montana. 
New-Haven. American journal of sciences. 
New-York. Academy of sciences. 
— American Institute of mining Engineers. 
— American Muséum of natural liistory. 
«y 
— University ofthe State of New-York. 
— New-York state Education departement. 
Philadelphie. American pliilosopliical Society. 
— Franklin institute. 
Rochester. Academy of sciences. 
— Geological society of america. 
St-Louis . Academy of Sciences. 
San-Francisco. California Academy of Sciences. 
Topeka. Kansas Academy of Sciences. 
Urbana. Illinois State geological Survey. University of Illinois. 
Washington. Geological Survey of the Territories. 
— Smitlisonian Institution. 
Argentine. 
Buenos-A y res. Academia nacional de ciencias. 
— Museo publico. 
Mexique. 
Mexico . Comission geologica. Instituto geologico. 
