Gray, Asa, on the gradation of species among the Compositae.

Gray, J.E., on the caudal vertebrae of monkeys; on the presence of rudiments of horns in the female of Cervulus moschatus; on the horns of goats and sheep; on crests of male antelopes; on the beard of the ibex; on the Berbura goat; on sexual differences in the coloration of Rodents; ornaments of male sloth; on the colours of the Elands; on the Sing-sing antelope; on the colours of goats; on Lemur Macaco; on the hog-deer.

“Greatest happiness principle.”

Greeks, ancient.

Green, A.H., on beavers fighting; on the voice of the beaver.

Greenfinch, selected by a female canary.

Greg, W.R., on the effects of natural selection on civilised nations; on the early marriages of the poor; on the Ancient Greeks.

Grenadiers, Prussian.

Greyhounds, numerical proportion of the sexes in; numerical proportion of male and female births in.

Grouse, red, monogamous; pugnacity of young male; producing a sound by beating their wings together; duration of courtship of; colours and nidification of.