970 Wisconsin Academy of Sciences , Arts, and Letters . 
Ithaca, N. Y. 
Cornell University. 
Joliet, Ill. 
Fern Bulletin. 
Lawrence, Kan. 
University of Kansas. 
Lincoln, Neb. 
Nebraska Academy of Sciences. 
University of Nebraska. 
Medford, Mass. 
Tufts College. 
Milwaukee, Wis. 
Public Library. 
Public Museum. 
Wisconsin Archaeological Society. 
Wisconsin Natural History Society. 
Minneapolis, Minn. 
♦Geological and Natural History Survey. 
Minnesota Academy of Natural Science. 
Montgomery, Ala. 
♦Geological Survey of Alabama. 
New Brighton, N. Y. 
Natural Science Association of Staten Island. 
New Haven, Conn. 
Connecticut Academy of Arts and Sciences. 
New York, N. Y. 
American Geographical Society. 
American Museum of Natural History. 
Apotheker Zeitung. 
Columbia University, School of Mines. 
Linnean Society. 
New York Academy of Sciences. 
New York Botanical Garden. 
Northfield, Minn. 
Goodsell Observatory. 
