INDEX 



Abraxas grossulariata, 91 



" Acquired " characters, 13 



Adaptation, 132 



Agouti mice, 46 



Albino mice, 46 



Albinos, nature of, 49 



Amauris, 133 



Analysis of types, 144 



Ancestral Heredity, Law of, 1 1 



Andalusian fowls, 64 



Axil colour in sweet peas, 85 



Bateson, W. , 13, 26, 51, 107, 122, 



130 



Biffen, R. H., 145 

 Blue Andalusian fowls, 65 

 Brachydactyly, 157 

 Bryony, in 

 Bush sweet peas, 57 



Castle, 122 



Cattle, horns in, 79, 153 



Colour, nature of, in flowers, 45 



Colour-blindness, 108 



Combs of fowls, 29, 40 



Correns, C. , 26, in 



Coupling of characters in gametes, 



86 



Cu6not, 46, no 

 "Cupid" sweet peas, 57 

 Currant moth, 91 



Darwin, C. , 9, 60, 135, 150 

 De Vries, H., 14, 26, 130 

 Discontinuity in variation, 13 

 Dominant characters, 16 

 Doncaster, L. , 91 

 Drinkwater, H., 158 



Dutch rabbits, 55 



Eggs, 2 



Environment, influence of, 127 



Euralia, 134 



Evolution, 9, 78, 129 



Eye, in primulas, 51 



Eye-colour, in man, 162 



Factor, definition of, 28 



Factors, interaction of, 39 



Fertilisation, 3 



Fertilisation, self- and cross-, 150 



Fixation of varieties, 141 



Fluctuations, 128 



Fowls, coloured from whites, 45, 68 



Gallon, ii, 165 

 Gametes, nature of, 5 

 Gregory, R. P., 51, 86 



Haemophilia, 161 

 Hardy, G. H., 136 

 Heterozygote, definition of, 25 

 Heterozygote, of intermediate 



form, 63 



Hieracium, 24, 123 

 Himalayan rabbits, 55 

 Homostyle primulas, 52 

 Homozygote, definition of, 25 

 Hooded sweet peas, 82 

 Horses, bay and chestnut in, 153- 

 Hurst, C. C., 57, 162, 165 



Immunity in wheat, 146 

 Individuality, 125 

 Inhibition, factors for, 69, 99 

 Intermediates, 116 



175 



