XV 
* Cambridge. Muséum of comparative Zoôlogy. 
Chicago. Journal of Geology. 
Davenport. Academy of natural sciences. 
* Denver. Colorado scientific Society. 
Hamilton. Hamilton Association. 
Madison. Wisconsin Academy of sciences, arts and 
letters. 
* Minneapolis. Geological and Natural history Survey. 
— Minnesota Academy of natural sciences. 
* New Haven. American journal of science. 
* New York. Academy of science. 
— Geological Survey. 
— American Muséum of nalural history. 
— State Muséum of natural history. 
* — Science. 
Rochester. Academy of sciences. 
— Geological Society of America. 
* Sacramento. State Mineralogist. 
* Salem. American Association for the advancement of 
science. 
* San Francisco. California Academy of sciences. 
St-Louis. Academy of sciences. 
Topeka. Kansas Academy of science. 
* Washington. Geological Survey of the territories. 
* — Department of the interior. United States geo- 
graphical Survey. 
— Smithsonian Institution. 
Mexique. 
* Mexico. Sociedad cientifica « Antonio Alzate ». 
Océanie. 
* Melbourne. Geological Society of Australasia. 
— Royal Society of Victoria 
* Sydney. Royal Society of New South Wales. 
