Subjects 



Dogfish (Continued) 



vitamin A, deterioration of. Sep 167, 

 170, 173 



vitamin A, mathod of extracting. Sep 186 

 vitamin A in 155 grayfish livers. Sep 248 



vitamin A potencies of livers of female 

 grayfish. Sep 117 



Dolomieu (See Black bass, smallmouth). 



Dominican Republic, fisheries. FL 259 



Dorena Dam. RR 35 



Draft deferment ( See Employment). 



Dressing, shucking, etc. Doc 1014, 1043, 1052, 

 1078; FL 54, 128, 143, 206, 214, 276; 

 IR 15; RR 1; Sep 233, 306, 355 



Drift bottle: 



releases off New Jersey. SSR-F 10 

 Drill, oyster (See Oyster drills). 

 Drill sampling device: 



for fish livers. FL 141, Sep 84. 



for livers frozen in drums. Sep 153 

 Drum: 



black. FL 134; Doc 1046 



genera and species, key to. Doc 945 



life history. Doc 945 



red, conservation. Doc 1046 



red, dry-salting. FL 136 



red, life history. Doc 1046 



reproduction and development. FB 16 

 Drying: 



commercial. RR 18 



home. FL 18 



Philippine fish, methods. RR 26 

 Dungeness crab: 



canning. FL 85, 88; RR 7; Sep 275 



description. FL 71 



frozen crab meat, retarding toughening. 

 Sep 166 



home canning. CB 28; FL 180 



taken on John N. Cobb's shellfish explo- 

 rations in Alaskan waters, 1950. 

 Sep 278 



Dynamiting rough fish. PFC 31 D 



171 



