Eubagis, sexual differences of colouring in the species of.
Euchirus longimanus, sound produced by.
Eudromias morinellus.
Eulampis jugularis, colours of the female.
Euler, on the rate of increase in the United States.
Eunomota superciliaris, racket-shaped feathers in the tail of.
Eupetomena macroura, colours of the female.
Euphema splendida.
Euplocamus erythrophthalmus, possession of spurs by the female.
Europe, ancient inhabitants of.
Europeans, difference of, from Hindoos; hairiness of, probably due to
reversion.
Eurostopodus, sexes of.
Eurygnathus, different proportions of the head in the sexes of.
Eustephanus, sexual differences of species of; young of.
Exaggeration of natural characters by man.
Exogamy.
Experience, acquisition of, by animals.
Expression, resemblances in, between man and the apes.
Extinction of races, causes of.
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