840 



INDEX 



Sponges, preparation for mar- 

 ket, 331-332 

 varieties of, 332-334 

 Squid, utilization of, 255-256 

 Suckawhock, manufacture from 

 clam shells, 241-242 



Terrapin, diamond-back, cul- 

 ture, 285-288 

 fishery, 285-289 

 Tides, cause of, 18-19 

 Tortoise-shell, manufacture of, 



282-284 

 Tuna, canning, 209-210 

 Turtle, green, 280-282 

 habits of, 278-280 

 Kemp's, 284 

 leathery, 284-285 

 loggerhead, 284 

 Tyrian purple, ancient manu- 

 facture, 26 



Vitamines, fish, 175, 178-180, 

 220 



W 



Walrus oil, manufacture of, 

 322-323 



Walruses, 320-323 



capture of, 320-322 



ivory from, 323 



skin, tanning of, 229 

 Wampum, use of, 26, 241-242 

 Whale, blue, 298 



bowhead, 298 



finback, 298-299 



Greenland right, 299 



humpback, 298-299 



meat, butchering of, 301-302 



oil, hydrogenation of, 303 

 manufacture, early meth- 

 ods, 292-293 

 modern methods, 302-303 



North Atlantic right, 298-299 



scrap, manufacture of, 302- 

 303 



sei, 298-300 



sperm, 298-300 



sulphur-bottom, 298 

 Whalebone, manufacture of, 

 306 

 nature of, 305-306 

 Whales, nature of, 296-300 



species of, 298-300 



toothed, 297-300 

 Whaling, 290-306 



history of, 290-295 



importance of, 40-41, 290-293 



modern methods of, 293-295 

 Whelk, 256 



