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Page 



— — — — androstenc- 

 dione 



— — — —^ as-androstc- 

 rone 



— — frans-andros- 



terone 



— — — — corticostc- 

 rone 



— — — — cortine . 



— — — — trans-dehy- 

 droandrostcrone . 



— — — — as-dihydro- 

 testerone 



— — — — Trans- dihy- 

 drotcstosterone 



— — — — dcsoxycorti- 

 costerone 



— — — — desoxycorti- 

 costcroncacctatc 



— — — — equilenin 



— — — — estradiol 



• — — — — estriol . 



— — — — estrone . 



— — — — mcthyltes- 

 tostcrone 



— — — — pituitary 

 extracts 



— — — — pregnane- 

 diol 



— — — — pregnanc- 

 dione 



— — — — pregnano- 

 lone 



— — — — pregnene- 

 dionc 



— — — — pregneno- 

 lone 



— — — — progesterone 



— — — — solvents 



— — — — rrans- testos- 

 terone 



— — — - — testosterone 

 propionate .... 



— — — — vitamin E . 



16 

 29 



19 

 23 



24 



16 



18 

 9 

 9 

 9 

 9 



24 

 46 

 14 

 14 

 14 

 13 



14 

 I o 



7 



19 

 24 



Ovipositor growth during 

 spawning time 



— — mechanism of erec 

 tion 



— its significance in endo 

 crinology .... 



— measurement . 



— test, specificity . 

 Ovo-follicular system . 

 Ovum, conversion into cor 



pus luteum 



— phagocytosis of yolk 

 Pituitary, acidophilia and 



basophilia . 



— and corpus luteum pro- 

 duction .... 



— blood-supply 



— gonadotrophic zone 



— haemo- and neurocrinia 



— homology of lobes . 



— hormone transport . 



— innervation . 



— light and activity . 

 ■ — platy- and leptobasia 

 Pre-ovulation corpus luteum 



cavum .... 



— — — ruptum . 



— — — with retention 

 of ovum . 



— - - — — cavum . 



— — — mixtum 



— ■ — — solidum . 



— — — v/ilh temporary 

 retention of ovum . 



Rhodeus omarus, sec bitter- 

 ling. 



Sexual behaviour of bitter- 

 ling during spawning i 2 



Sexual cycle of Bufo bufo . 



— — — Lebistes reticu- 

 latus 



— — — Rhodeus amarus 



— — — Zoarces vivi- 

 parus 



Zoarces viviparus 



123 



38 39 



5 



6 8 



93 



82 

 85 



49 



54 

 62 



47 48 

 69 72 

 56 74 



70 



65 68 



6 



58 



103 

 I 04 



I 04 

 105 

 1 06 

 I 06 



1 06 



