GENERAL INDEX 



D Rh antigen, effect of periodate on, 



137. 

 Delayed mating in mammals, 106. 



DNA, 84-85. 



Detergents, 22, 36. 



Diffusion coefficient, of fertilizin, 



25- 

 Digitonin, as cytolytic agent, 100. 



lOI. 



Dihydroxyfumaric acid, 44, 49. 

 Dihydroxymaleic acid, 49. 

 Dimethyl-/)-phenylenediamine, 



effect on O2 uptake of eggs, 67. 

 Dipeptidase activity, 87. 

 DPN, 71, 84. 



Diphosphothiamine, 79, 84. 

 Dispermic adults, 105. 

 Dispermy, in rat eggs, 114. 

 Double matings, 121-123. 



Echinochrome, 22, 33-34, 98-99; 

 granules, 98-99. 



Egg-antifertilizin, 22, 34-35. 



Egg homogenates, acid production 

 of, 99 ; effect of calcium on, 98- 

 99 ; effect of cyanide on, 98 ; effect 

 of fluoracetate on, 79; effect of 

 iodoacetate on, 99 ; effect of 

 papain on, 99 ; viscosity of, 

 98. 



maturation, classification of 



fertilization according to matura- 

 tion state, 2-4, 60-61 ; role of 

 calcium in, 98. 



membrane Lysin. See Sperm 



Lysin. 



w^ater, 23-34. 



Electrophoretic mobility, of anti- 

 fertilizin, 35 ; of fertilizin, 24. 



Endogenous substrates, in eggs, 

 64-65, 69-79. 



Enolase, 70. 



Entrance cone. See Fertilization 

 cone. 



Ether, effect on male pronucleus, 

 15-16 ; reversal of fertilization by, 

 119. 



Expansion, of fertilization mem- 

 brane, lO-II. 



165 



Fertilization cone, 7, 107-108. 



impulse. See Cortical change. 



membrane, 8-12, 35, 88, 91, 



98, 118; birefringence of, 91; 

 contractility of, lo-ii; effect of 

 trypsin on, 88, 93, 121 ; expansion 

 of, lo-i I ; role of calcium in tan- 

 ning of, 10. 



rate, (a), 109-113, 136. 



tube, 13, 14. 



Fertilizin, 21-38, 138, 139; as anti- 

 coagulant, 97 ; axial ratio, 25 ; 

 carbohydrates in, 26; composi- 

 tion, 24-25 ; diffusion coefficient, 

 25; effect of periodate on, 25, 

 28 ; effect of trypsin on, 25 ; elec- 

 trophoretic mobility, 24; as in- 

 hibitor (of fertilization), 28-30, 

 97 ; modification by proteolytic 

 enzymes, 28 ; molecular weight, 

 22, 25 ; morphological effects on 

 spermatozoa, 7-8, 30; multi- 

 valent and univalent, 28-29; 

 non-agglutinating, 25, 28-29; 

 pow^der, 24, 25 ; sedimentation 

 constant, 25 ; specificity of, 26- 

 27; sulphate content, 24-26, 31 ; 

 univalent fragments, 28-29. 



Fertilizin-antifertilizin reaction, 34- 



35, 97, 138-139. 



Flavonols, 51-54. 



Fluoracetate, effect on egg homo- 

 genates, 79. 



Fluoride, inhibition of endogenous 

 metabolism, 71, 73, 78. 



Follicle cells, 5, 36. 



Forsythia, 51-54, Plate V. 



Fructose, in egg jelly, 26. 



Fucose, in egg jelly, 26, 30-31 ; in 

 egg water, 30, 31. 



Fusion nucleus, cleavage path, 14, 

 16-18. 



Galactose, in egg jelly, 26. 



Gamones, 21-38. 



Gelation, of cortex, 94-97 ; of pro- 

 toplasm, 94-99. 



Glucose-6-phosphate, in eggs, 71, 

 72. 



