FISHERY INDUSTRIES OF THE UNITED STATES, 1921. 77 



Mexican Fishery Products, in Pounds, Imported into California, 1921. 



FISHERIES OF MARYLAND AND VIRGINIA IN 1920. 



The fisheries statistics contained in this report are based on a 

 regular canvass of the fisheries of the States of Maryland and Virginia 

 for the calendar year 1920.^ The statistics of the oyster industry, 

 however, represent the oyster season of 1920-21. This report also 

 includes the number, quantity, and value of the catch of shad and 

 alewives in the fishing season of 1921 for the two States. The sta- 

 tistics of the shad and alewife fishery of the Potomac River, following 

 the practice of making an annual canvass of this fishery beginning 

 with 1919, and brief history of the shad fishery of the Potomac River 

 are given on pages 66 to 70. 



■ This canvass was made by Winthrop A. Roberts, Rob Leon Greer, Andrew J. Messner, and Fred F. 

 Johnson. 



