Department of Commerce 
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Fish and Wildlife Service 
Technological Laboratory 
2725 Mont lake Boulevard 
Seattle, Washington 
August 5, 1941. 
Air Mail 
Dr. Waldo L. Schmitt, Curator, 
Division of Marine Invertebrates, 
Smithsonian Institution, 
United States National Museum, 
Washington, D. C. 
Dear Dr. Schmitt: 
On the second expedition we have records as to 
whether the crabs measured were taken in tangle nets, 
trawls, or crab traps. Marvin does not find any ref- 
erence to the type of gear in which the various 
measured crabs were taken during the first expedition 
and would like to know if you can supply such data, 
since we are interested in making a study on the size 
of the crabs taken in the different kinds of gear 
used. 
If you do not have definite data, it would be 
helpful to know if, by chance, the greater number of 
the crabs measured during the first expedition were 
taken in the "Dorothy's** trawl. 
Sincerely, 
R. W. Harrison, 
Technologist in Charge. 
