Sheep, Merino, loss of horns in females of; horns of.
Shells, difference in form of, in male and female Gasteropoda; beautiful colours and shapes of.
Shield-drake, pairing with a common duck; New Zealand, sexes and young of.
Shooter, J., on the Kaffirs; on the marriage-customs of the Kaffirs.
Shrew-mice, odour of.
Shrike, Drongo.
Shrikes, characters of young.
Shuckard, W.E., on sexual differences in the wings of Hymenoptera.
Shyness of adorned male birds;
Siagonium, proportions of the sexes in; dimorphism in males of.