1 66 



FERTILIZATION 



Glutamine, hydrolysis, 75 ; syn- 

 thesis, 75, 86, 87. 



Glutathione metabolism, 78, 90. 



Glycine, effect on p, 137; metabol- 

 ism, 87. 



Glycogen, in eggs, 70-74, 87. 



Glycogenolysis, in eggs, 73-74. 



Glycolysis, in eggs, 69-74. 



Glycolytic enzymes, in eggs, 70. 



Glycolytic intermediates, 70. 



Guanine, 86. 



Gynogamone I (G.I), 22, 33- 



34- 



II (G.II). See Fertilizin. 



Gynogenetic development, 139. 



Haemagglutination, effect of peri- 

 odate on, 28 ; effect of trypsin on, 



137. 



Heat-shock, effect on block to 

 polyspermy, 115. 



Heavy metals, in sea water, 31. 



Heparin, 88, 96. 



Hesperidin, 54-55. 



Hetero-agglutination, 26-27. 



Hetero-agglutinins, in human blood 

 sera, 27 ; physico-chemical prop- 

 erties of, 27. 



Heterologous insemination, 1-2, 

 136-140. 



'Heterologous' polyspermy, 121- 

 123. 



Hexokinase, 66, 70, 89. 



Hexose monophosphate shunt, 69- 



73- 

 Hirst phenomenon, 28. 

 Hyaline layer, 13-14, loi, 118; 



birefringence of, 91, loi ; effect 



of calcium lack on, 13. 

 Hyaloplasm. See Hyaline layer. 

 Hyaluronic acid, 5. 

 Hyaluronidase, 5, 22, 36-38, 54. 

 Hydrogen bonds, 137. 

 Hydrolysing enzymes, in Forsythia, 



52. 

 4-Hydroxy-P-cyclocitral, 53. 

 Hypertonic sea water, variations in 



sensitivity of eggs to, 99-101. 



Hypotonic sea water, effect on eggs, 

 80-81, 133-134; variations in 

 sensitivity of eggs to, loi. 



Hypoxanthine, 86. 



Immature eggs, response to in- 

 semination, 8. 



Incomplete antibody, 137. 



Induced polyspermy, 115-118. 



Induction period, between sperm- 

 attachment and cortical change, 

 108. 



Inhibition of fertilization, by ferti- 

 lizin, 28-30, 97 ; bv Sperm Lysin, 

 36. 



Inhibition of pollen germination, 

 by quercitrin, 54; rutin, 54. 



Inhibition of polyspermy. Type I, 

 106-115. 



, Type II, 103-105. 



Inhibitors, of sperm movement, 22, 



37-38. 



Internal pressure, of eggs, 92-94. 



Interphyletic crosses, 139. 



lodoacetate, effect on egg homo- 

 genates, 71, 73, 99. 



Ions, concentrations of, in sea- 

 urchin eggs, 129. 



Irreversibility, effect on action 

 potential, 124-127. 



/50-rhamnetin, 53. 



Jelly, 23-26, 29-32; contraction of, 

 37 ; effect of removal on fertiliza- 

 tion, 30 ; effect of removal on p, 

 137; fucose in, 26, 30-31; gal- 

 actose in, 26 ; precipitation mem- 

 brane, 22, 34, 37; removal of, 

 23, 24-25 ; sulphate in, 24-25, 31, 



Klinokinesis with Adaptation, 40, 

 42. 



Lactic acid, 70, 71. 

 Lecithin metabolism, 74-75, 87. 

 Light, effect on 0.> uptake of eggs, 

 67-68. 



