Emberiza schoeniclus, head-feathers of the male.
Embryo of man; of the dog.
Embryos of mammals, resemblance of the.
Emigration.
Emotions experienced by the lower animals in common with man;
manifested by animals.
Emperor butterfly.
Emperor moth.
Emu, sexes and incubation of.
Emulation of singing birds.
Endurance, estimation of.
Energy, a characteristic of men.
England, numerical proportion of male and female births in.
Engleheart, Mr., on the finding of new mates by starlings.
English, success of, as colonists.
Engravers, short-sighted.
Entomostraca.
Entozoa, difference of colour between the males and females of some.
Environment, direct action of the, in causing differences between the
sexes.
Envy, persistence of.
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