INDEX 



155 



Epididymis, 19-21, 38 



Epiphyses after castration, 87-8 



Epithelial cells (epithelium), 8, 19- 

 23, 25-32, 42-4, 46-7, 49, 52, 69, 

 71-2, 83, 94, 99, 101, 113, 135 



Epithelioid interstitial cells, 19, 28, 

 71, 94 



Erectile tissue of penis, 23-4 ; 

 organ in female, 33 ; nipples, 83 



Erection, penile, 21, 24, 38 ; after 

 castration, 87-8 



Erector penis muscle, 24 



Eugenics, 147 



Eunice fucata, 13; viridis, 13 



Eunuch, 86-7 



Eunuchoidism, 94 



Eustachian tubes, 70 



Evans and Bishop, 139 



Evolution, 124 



EWART, 121 



Ewe, 42, 45, 138 ; period of gesta- 

 tion, 76 ; see also Sheep 



Excretory organs, 16 



Existence, struggle for, of gametes, 

 146 



Extra- embryonic cielom, 62-3 ; 

 ectoderm, 62 



Extravasation, 52-3 



Eye, 67-8 



Factors (genes), 117-18, 123, 140 

 Fallopian tubes, 26, 28, 30, 37, 60, 



108 

 Fascia, 22 

 Fat, 1, 34, 59, 73, 83, 138; after 



castration, 87, 90, 98, 129; at 



menopause, 90 

 Fat ceUs, 32 

 Fell, 128 

 Female reproductive organs, 25-33, 



101 ; exterior, 35 ; spaying, 90 

 Femininity, after castration, 81 

 Femur, 15 



Ferret, 28, 39, 50, 101 

 Fertilisation, 8, 11, 113, 140; act 



of, 10 ; artificial, 10 



Fertility, 137-50; factors in, 137, 



139, 140 ; inheritance of, 142 

 Filiform appendage in ram's penis, 



25 

 Fillies, 59 

 Fimbrice, 28 



Finch, spermatozoa in, 7 

 First pregnancies, duration of labour 



in, 78 

 Fish, 146 ; castration results, 91 ; 



gametic union, 12 

 Fission, binary, 3, 4, 6 

 Flattely and Walton, 14 

 Flatworm, 3 



Flies, experiments with, 120 

 " Flushing " sheep, 138 

 FocKE, 122 

 Foetal atrophy, 138-9 ; placental 



organ, 62 ; membranes, 62, 74, 



77 

 Ftetus, 44, 68-9, 73-5 ; contraction 



rings, 109 

 FoGES, 92 



Follicles of ovary, 27, 29 

 FORDYCE, 58, 84 

 Forehead, pigmentation of, 75 

 Formative cell mass, 61-63 

 Fowls, inherited fertUity through 



cock, 142 ; ovariotomised, 96 ; 



telegonic experiments, 121 ; testi- 

 cular transplantation in, 92, 112 ; 



see also Cock, Hen, etc. 

 Fraenckel, 58, 101, 104 

 Franz, 94 

 Frazer, 57 

 Free-martin, 131-2 

 Freud, 148 

 Friction, 38 

 Fright, 145 

 Frog, castration of, 91 ; gametic 



union, 12 ; hermaphrodite, 128-9 ; 



spermatozoa in, 7 ; testicular 



transplantation in, 92 



Galabin, 79 

 Galton, 147 



