Tivela SIX, 1234 



Toadfish 1201 



Toads 1976 



Tobacco smoke dissolved or suspended in seawater 1021 



oc-tocopherol 6 



Toilets, Federal regulations re marine 382 



Tolerance, acute 349 



, high 554 



of temporary anaerobiosis 745 



to nitrate 557 



Tolerances 93, 142, 211, 236, 237, 238, 450, 2000 



Toluene 208 3 



Tomales Bay, Calif. 771, 1406 



Tone and frequency increased 704 



, increase 706, 708 



Tonged year-round 1668 



Tongs 155, 286, 287, 339, 416, 621, 673, 679, 716, 861, 899, 1303, 1552, 1656, 

 1672, 1740 



, hand 41, 244, 245, 548, 918 



, patent 34, 36, 41, 691, 801, 1095, 1303 



Tons of clams per acre 1928 

 Tonus/tone 12, 2134 



abolished 1319 



Tools, hand 548, 675 

 Topography, general 160 

 Tortugas, Fla. 423 

 Torulopsis 202 



Tottenia 1457 



Town 155, 1772 

 Tows, number of 1094 

 Toxaphene 436 

 Toxic 1079, 1205, 1236 



action 683 



bivalve mollusks 412 



effect, extracts had no 1624 



effects, direct 356 



of industrial wastes 1324 



, extracts in higher concentrations were 1624 



, extremely 1508 



ions 399 



materials 467 



metabolites 238, 440, 447 



pesticides (see also pesticides) 356 



responses 1049 



secretion 1435, 1531, 1876 



substances 213, 722, 1061, 1859 



to fishes and mice 17 86 



828 



