CONTENTS. 



Page. 



Relations with the fishery industries 5 



Summary of activities 5 



Increasing production and consumption of fishery products 6 



Demonstrations in fish cookery 8 



Fish-cookery experiments 9 



Increasing the use of waste products of fisheries 9 



Development of aquatic sources of leather 10 



Principles governing the preservation of fish by salting 12 



Development of a process for the recovery of waste brine 12 



Urgent need for exhaustive investigations of preserving methods 13 



Fishery products laboratories 13 



New England vessel fisheries 15 



Pacific salmon fisheries 17 



Vessel fisheries of Seattle 19 



Fisheries of Great Lakes, Lake of the Woods, and Rainy Lake 20 



Biological inquiry 20 



Study of fishes 20 



Salmon investigations 20 



Pilchards on the northwest coast 21 



The paddlefish 22 



Spawning of squeteague 22 



Fish in relation to mosquito control 22 



Experimental fish culture 23 



Shellfish investigations 23 



Oysters 23 



Sea mussels 24 



Fresh- water mussels 25 



Miscellaneous studies of shellfish 26 



Aiding production and preventing waste 26 



Biological laboratories 28 



Propagation and distribution of food fishes 29 



R6sume of operations 29 



Hatcheries operated 31 



Relations with the States in fish culture 33 



Propagation of commercial fishes of Great Lakes 34 



Cultivation of pond and river fishes 35 



Carp culture 36 



Propagation of river fishes of Atlantic seaboard 37 



Pacific salmon operations 37 



Cultivation of marine species 39 



Lobster hatching 40 



Rescue of stranded food fishes 41 



Some needs of the fish-cultural service 42 



Artificial propagation of fresh-water mussels 42 



Alaska fishery service 43 



General character of the service 43 



Magnitude of the Alaska fisheries in 1918 44 



Fishery patrol 45 



New regulations for salmon fisheries 46 



Private salmon hatcheries 48 



Commercial fishing in Alaskan reservations 48 



Alaska fishery legislation 49 



3 



