Diatoms, intermediate populations of filtered more rapidly 1544 



, siliceous 1840 



Dibutyryl cyclic AMP 836, 838 



Dicapthon 436 



Dichlobenil 599 



Dichlorobiphenyl, elimination of 1048 



Dichlorophene (DCP) 1830 



Dichlorophenolindophenol (DCIP) 747 



Dicing 519 



Dierateria 438, 1427, 1927 



Die 455 



Died during 18 months, most 1594 



Dieldrin 228, 229, 316, 462, 574, 592, 593 



Diet, formulated 551 



Diethyl safranin 1332 



Diets 552 



Difference, no significant 345 



Differences, annual 1263 



not great 383 



, seasonal 869, 1263 



Diffraction, wide-angle 145 



Digenea 1943 



Digenetic trematodes 1747 



Digest 213, 438 



Digestible 238 



Digestion 1351, 1426, 1427, 1558, 1876, 1878, 2194 



, hyaluronidase 846 



, intracellular, occurs continually 2193, 2194 



, Kjeldahl 102 



of animals by lamellibranchs 2057 



fat 646 



, papain 397, 2167 



, period of 397 



, prolonged 347 



reaction 740 



, resistance to pepsin 396 



Digestive acids, destroyed by human 235 



diverticula 23, 980, 1088, 1089, 1424, 2057 



diverticular epithelium 1307 



enzymes, destroyed by human 235 



gland 102, 148, 232, 249, 460, 613, 817, 938, 1413 



tubule variability 1557 



tubules 1421 



lamellae 327 



organs 1232 



processes 2193 



role 2066 



677 



