Barred plumage in fowls
Basoh
Bateson
Bees, heredity of sex in
Bernard, Claude
Berthold, A. A.
Biedl and Konigstein
Bionomies
Blindness in cave animals
Bombyx mori
Boring, Miss
Born and Fränkel
Brachydactyly
Bresslau
Brown-Séquard
Bühler

Cambarus, males of
Capons
Castle, experiments in grafting; on sex
Castration; in ducks; of frog; of Lepidoptera
Cats, heredity of colour in
Cave animals, absence of pigment
Cephalopoda
Cetacea, absence of scrotum
Chelonia
Chologaster agassixii
Chromosomes; in mutations
Clevelandia
Colaptes
Colour-blindness; heredity of
Colours, origin of, in domesticated breeds
Comb of fowls, uselessness of
Corpora lutea, evolution of; in viviparous lower vertebrates; origin of
Corystes cassivelaunus
Courtship, organs of
Criss-cross inheritance
Crossing over
Cryptorchidism
Cuttle-fishes
Cyclostomes, absence of corpora lutea in
Cytology
Cytoplasm, in heredity

Dafila acuta crosses Daphnia, heredity of sex in Darwin Dasyurus; corpora lutea; lactation Davenport Determinants Determination of sex Dipnoi, fins Dog-fishes, oviparous and viviparous Dominant characters, origin of Doncaster; on heredity in cats Drosophila, blind mutation, heredity of sex, mutations Ducks, crosses of Dutch rabbit

Earthworms, sex in
Eclipse plumage
Eigenmann
Eimer
Elasmobranchs; corpus luteum in
Elephants, testes
Eugenics
Eunuch
Evolution, evidence of

Factors, origin of
Feathers, evolution of
Flat-fishes, mutations of
Flight, evolution of
Flounder
Foa, on lactation; on grafting
ovaries
Foges
Fowls, castration of; origin of breeds
Fractionation of Mendelian factors
Fränkel
Frog, thumb-pad

Gallus bankiva
Gates, Dr. R. Ruggles
Geddes and Thomson
Gemmules
Genital ducts
Gigas, Oenothera
_Gillichthys
Gipsy moth
Goltz and Ewald
Gonads, hormones of
Goodale, H. D.
Grafting, of ovaries or testes
Graves' disease
Gudernatsch
Guthrie, C. C.
Gynandromorphism

Haemophilia
Hanau
Hegner
Herdwick sheep, castration in
Heredity; and sex
Hermaphroditism
Hill, J. P.
Horns
Houssaye

Inachus scorpio
Insects, heredity of sex in
Interstitial cells
Intromittent organs

Japanese long-tailed fowls; artificial treatment of

Kammerer
Kellog
Kopec