780 



Spermaceti, properties, 707-708 



refining, 704 



uses, 704-705, 708 

 Sperm oil, 704-708 



composition, 707 



preparation, 706 



properties, 707-708 



refining, 704 



uses, 704-705, 708 

 Sperm whale, 682-683 

 Sponge fishery, decline of, 734-735 



history of, 733-734 



hooking, 747 



importance of, 734-735 



machine diving, 747-748 



methods, 746-749 



nude diving, 746-747 



statistics of, 735 



trawling, 749 



wading, 746 

 Sponges, 733-751 



bath, 745-746 



bleaching of, 750 



commercial, 736-737 



varieties of, 734, 739-740 



composition of, 738 



conservation of, 734-735 



culture of, 738-739 



description of, 736-737 



economic importance of, 9, 734—735 



elephant ear, 746 



glove, 743-744 



grading, 750 



grass, 743 



hardhead, 744 



honeycomb, 745-746 



living, characteristics, 735-736 



loading of, 750 



preparation for market, 749-750 



properties of, 737-738 



reef, 744 



sheepswool, 740-741 



spongin of, 736, 738 



toilet, 745 



Turkey cup, 745 



Turkey solid, 745 



use, 737-741 



velvet, 742 



wire, 744 



wool, 740-741 



yellow, 741-742 



Zimocca, 745 

 Squid, uses of, 677-678 

 Statistics of smoked fish, 398 

 Steam digestion of fish livers, 503 

 Stickwater, 482 



acidulation of, 483 



condensation of, 482-483 



Sharples-Lassen process, 482-485 



INDEX 



Stigmasterol in oysters, 573 

 Stockfish, Norwegian cured, 418-419 

 Stock food from algae, 102-103 

 Storage of salted fish, 365-367 

 Sturgeon, freezing of, 338-339 



kippered, 413-414 

 Submarine trap, 264 

 Super-D-canter, 484 

 Supersonic location of whales, 689 

 Sweden, commercial fishery production, 



197, 201-202, 204-207 

 Swordfish, freezing of, 338-339 

 Swordfish liver oil, 494 



Tactile organs of fishes, 165 

 Tagging of fishes, 185 

 Tangle net, 623 

 Tannage, alginates in, 548 



chemical reactions of, 548-549 



chrome, 548 



Irish moss in, 548 



vegetable, 548 

 Tanning, of nets, 275 

 Tarring, of nets, 275 

 Teeth of fishes, 149, 151, 152, 160-163 

 Terrapin, Carolina, 662-663 



Chesapeake, 661-663 



diamond back, 661-662 

 capture of, 663 

 habits, 662 



marketing, 661-662, 664 

 propagation of, 662-663 



Florida, 662 



quantity marketed, 657 



Texas, 663 

 Thiamin, in condensed fish solubles, 486 



in fish, 298-302 

 Threonine, in condensed fish solubles, 486 

 Thyroxin from whales, 701 

 Titration, electrometric, as an index of de- 

 composition, 285 

 Tong oyster, 561 

 Tortoise shell, 660-661 



economic importance of, 9 

 Trammel nets, 260-261 

 Transportation of fish, 307-327 



by airplane, 324 



desiccation during, 308-309 



forced air circulation, 309 



frozen, 320-321 



grid system of cooling, 309-311 



humidity required, 307-309, 325 



ice, rate of melting, 324-325 

 aged and green, 325 



in ships, 309-310 



jacketed system of cooling, 309 



leaching of fish packed in ice, 308, 311 



oxidation during, 308 



protective coatings, 311 



