INDEX 



775 



Murphy freezer, 349 

 Mussels, as chicken feed, 677 



canning of, 676—677 



characteristics of, 674-675 



composition of, 289, 675 



dredges for, 237 



fishing for, 675-676 



fresh, 676 



industry, 673-674 



pickled, 676 



species used, 674—675 



use as bait, 677 



utilization of, 676-677 

 Mussel-shell products, 226, 677 



Natica, 677-678 



Netherlands, commercial fishery production 



in, 197, 200, 202, 204-207 

 Nets, casting, 266-267 



copper treatment of, 275-276 



cordage for, 244-245 



fibres in, 240-244 



fyke, 266 



gill, 236, 257-258 



Lampara, 251-252 



parenzella, 256-257 



pound, 260-264 



preservation of, 274-277 



reef, 265-266 



tanning of, 275 



tarring of, 275 



trammel, 260-261 

 Netting, knots, 234 



mesh size measurement, 244—245 

 Newfoundland, commercial fishery produc- 

 tion in, 197-198, 202, 204-207 



hair-seal industry in, 727-728 



importance of fisheries, 8 



lobster industry in, 633-645 

 New Zealand, commercial fishery produc- 

 tion in, 201, 204-205 

 Niacin in fish, 298 

 Nicotinic acid in condensed fish solubles, 



486 

 Nitrogen in fish, 290-291 

 Norway, commercial fishery production in, 

 197, 200, 202, 204-207 



importance of fisheries in, 7 



sardine industry in, 443-444 

 Norwegian, cured herring, 386—387 



cured stockfish, 418-419 



pressfish, 422-423 

 Nostrils of fishes, 164 

 Nutritive value, of cod liver residue, 502 



of oysters, 573-574 



of shrimp, 606 



Ocean, minerals in, 2-5 

 Octopus fishery, 679 



OU, alewife, 490 



anchovy, 490 



Arctic sperm, 705-708 



blackfish, 703 



cod, 502 



combined with protein, 493-499 



content in fish livers, 494-497 



dolphin, 703-704 



fish, composition of, 487-488 

 erucic acid in, 487 

 iodine number of, 488 

 separating of, 481-482 



for canning sardines, 441, 442-443 



for canning tuna, 447 



hair seal, 546 



herring, 490 



menhaden, 489-490 

 production of, 472-473 



pilchard, 470-471 



porpoise, 703-704 



purifier, 482 



salmon, 490 



seal, 726-727 



sperm, 704-708 



tuna, 490-491 



vitamin A in, 518-520 



whale, 691-708 



composition of, 706—707 

 Oils, fish liver, 493-523 



location of industry, 499 

 quality of, 507-508 



production of, 470-473 

 Ostreasterol in oysters, 373 

 Otter trawls, 252-254 



for shrimp, 256 



number used, 236 



use of, 254 

 Oxidation, of fat in salted fish, 366, 376 



of fish in storage, 308 

 Oyster, 



description of, 552-554 



farms, 557 



industry, development of, 550 

 Oysters, 550-575 



American production of, 550-551 



biology of, 552-554 



blowing of, 567 



by-products of, 574 



canned, smoked, 571 

 statistics of, 569 



canning, 569-571 



chlorination of, 572 



composition of, 289, 296, 572-574 



conditioning of, 557 



copper in, 558 



cultivation of, 556-560 



digestive organs of, 555 



disinfection of, 572 



dredging of, 561 



