Front matter
Reading edition
DEPARTMENT OF COMMERCE BUREAU OF FISHERIES HUGH M. SMITH, Commissioner
THE PROTECTION OF FRESH-WATER MUSSELS
By R. E. Coker, Ph. D. Director U. S. Biological Station Fairport, Iowa
Bureau of Fisheries Document No. 793
WASHINGTON GOVERNMENT PRINTING OFFICE 1914
THE PROTECTION OF FRESH-WATER MUSSELS
By R. E. Coker, Ph. D. Director U. S. Biological Station, Fairport, Iowa
Bureau of Fisheries Document No. 793