INDEX 



779 



Sea, extent of, 1 

 Sea lions, 729 

 Seal fisheries, 716-731 

 location of, 716-717 

 Seal meal, 726-727 

 Seal oil, 726-727 

 Seals, economic importance of, 8 

 fur, 



classification of pelts, 723 

 disposition of carcasses, 726-727 

 dyeing of pelts, 724 

 economic importance of, 718—721 

 federal protection of, 718-719 

 finishing, 725 

 habits of, 720-722 

 handling of pelts, 723-725 

 killing, 722 



machining hides, 724-725 

 preparation, 724-725 

 skinning of, 722-723 

 species of, 716 

 tanning hides, 724 

 unhairing pelts, 723-725 

 hair, 727-728 



habits of, 716, 727-728 

 leather from, 538-540 

 Sealskin leather, 538-540 

 Sealskins, fur, tanning of, 723-725 

 Sea mussels, 673-677 

 Seaweed, as fertilizer, 101-103 

 as stock food, 102-103 

 miscellaneous uses of, 101-104 

 Seines, haul, 



construction of, 250-251 

 number used, 236 

 use of, 250 

 purse, 245-248 

 mackerel, 250 

 menhaden, 248-249 

 nrunber used, 236 

 pilchard, 249, 250 

 tuna, 248 

 Shad, composition of, 287, 289 



fluctuations in population of, 181-182 

 kippered, 413-414 

 Shagreen of fish, 153 

 Shark fins, edible, 466 

 Shark-flesh paste, 466 

 Shark leather, 543, 547 

 Shark livers, alkali digestion of, 503-504, 

 508 

 enzyme digestion of, 504-505 

 steam digestion of, 503 

 Sharks, capture of, 540 



skinning of, 542 

 Sharkskins, shagreen, removal of, 540 

 tanning of, 542-543 

 value of, 543-545 

 Sharp freezers, 336, 344-345 



Sharples-Lassen, stickwater process, 482- 



485 

 Shellfish, economic importance of, 8 

 Shell products, 227 

 Shell, tortoise, 660-661 

 Shrimp, 590-607 



bran, 605-606 



canned, statistics of, 596 



canning, 595-600 



peeling for, 597, 602-603 



capture of, 591-594 



composition of, 289, 594-595 



cooking, 602 



description of, 590-591 



deterioration of, 593 



dried, marketing of, 604-605 



drying, 603-605 



freezing, 600-602 

 packing, 600-601 



iced, 591, 593 



inspection of, 596, 598 



marketing, 595 



mechanical peeler for, 602-603 



production of, 223, 590 



seasons for, 591 



smoked, 417 



species, 590-591 



vessel handling of, 591-592 

 Shrimp meal, 591, 605-606 

 Sicily, coral fisheries of, 143 

 Skipjack tuna liver oil, 494 

 Smoke, constituents of, 400 

 Smoking clams, 588 

 Smoking fish, 



electrodeposition of, 400 

 Snappers, red, 157, 177 

 Snapping turtles, 664 

 Society Islands, mother-of-pearl fishery, 



129-130 

 Sodium, in condensed fish solubles, 485 

 Soles, 151 



Solexol distillation process, 517-518 

 Solubles, condensed fish, 485-486 

 Solvent extraction of fish livers, 505, 508 

 Sonar, 



use of, 272-273 

 Sounds as a source of isinglass, 533-534 

 Soupfin shark, kippered, 413-414 



vitamin A distribution in, 500 

 South Africa, commercial fishery produc- 

 tion, 201, 204-206 

 Spain, commercial fishery production in, 



197, 201-202, 204-207 

 Spawning of fishes, 173-175 

 Spectrophotometer, use of, in estimating 



vitamin A in fish liver oil, 513 

 Spermaceti, 704-708 



composition, 707 



preparation, 706 



