Index 



233 



183-8; inositol, 191; nucleic 

 acid, 102; Feulgen reaction, 101; 

 PAS reaction, 112; nuclease, 123; 

 phosphatases, 117-23; proteoly- 

 tic enzymes, 114-16; cytochrome, 

 66, 90-1; hyaluronidase, 94; 

 amine oxidases, 167, 182; respira- 

 tion, 41, 50, 90, 167; choline 

 esterase, 173; hormonal aspects, 

 143-8; freezing effect, 63-5; 

 effect of arsenicals, 58 

 Man, seminal vesicle, 16, 35; com- 

 position of secretion, 20, 23^, 

 137; monamine oxidase, 182; 

 phosphorylcholine, 171; fructose, 

 23^, 137 

 Mannose, as substrate for sperm, 



52, 152, 154 

 Manteau lipidique, 15, 126 

 Marsupialia, copulatory plug, 



28 

 Maturation of sperm, see ripening 

 Megathura cremdata (key-hole lim- 

 pet), egg-membrane lysin, 95 

 Mercury salts, toxicity, 54, 57 

 Mesaconic acid, and chemotaxis, 72 

 Metabolic regulator, 153-4 

 Metabolism, chief characteristics, 

 45; of carbohydrate, 45-53, 151- 

 9; of lipid, 128-30; of protein, 

 114-17; of nitrogenous bases, 1 67, 

 169-73, 176-8, 180-2; of citric 

 acid, 187-8; extraneous factors, 

 55-9, 73, 79; role of adenosine 

 triphosphate, 129, 155-9 

 Metal-chelating agents, and sperm, 



76, 114 

 Metalloproteins in semen, 88-93 

 Methionine, in semen, 84, 87; as 

 substrate for ergothioneine for- 

 mation, 178 

 Methoxyquinone, effect on sperm, 



57 

 5-Methylcytosine, 100-1 

 Methylene-blue reduction test, 48, 

 87 



Methylhydroquinone, effect on 



sperm, 57 

 Meyerhof oxidation quotient, 153 

 Middle-piece, structure and com- 

 position, 10, 13-14, 87; separa- 

 tion from sperm-head and tail, 

 86-87; indophenol reaction, 90-2; 

 lipids, 126-30 

 Milk, as diluent, 79, 81 

 Milovanov's diluent, 80 

 Milovanov's resistance test, 78 

 Mitochondrial sheath, 6, 14, 126 

 Mole, copulatory plug, 28 

 Molluscs, lytic agents, 95; sperm 



nucleic acid, 104 

 Monkey, prostatic phosphatase, 



119 

 Monoamine oxidase, 182 

 Motility of sperm, types, 41-2; 

 role of fibrils, 14; assessment and 

 relation to fertility, 39-53; rela- 

 tion to metabolism, 45-50, 91- 

 2, 151-4; activators and inhibi- 

 tors, 25, 55-8, 92; after irradia- 

 tion, 59; dilution effect, 72-82; 

 role of, ions, 74, 77, sulphydryl 

 groups, 77, 176-8, gamones, 69- 

 72, adenosine triphosphate, 154- 

 9, spermine, 167, acetylcholine, 

 173, ergothioneine, 176-8, citric 

 acid, 188 

 Motility test, for androgen, 67 

 Mouse sperm, structure, 6, 7; irra- 

 diation effects, 59; fructose, 136 

 Mucopolysaccharase, 96 

 Mucopolysaccharides, 12, 97 

 Mucoprotein, in semen, 28, 33; in 



sea-urchin 'jelly coat', 71 

 Mucus plug, in the honey-bee, 28 



Neck-piece (neck, sperm-neck), 13 

 Necrospermy, effect on fructolysis, 



46 

 Niacin (nicotinic acid), 33 

 Nicotinamide nucleotide, dephos- 



phorylation, 122 



