Rabbits, domestic, elongation of the skull in; modification of the skull in, by the lopping of the ear; danger-signals of; numerical proportion of the sexes in.
Races, distinctive characters of; or species of man; crossed, fertility or sterility of; of man, variability of the; of man, resemblance of, in mental characters; formation of; of man, extinction of; effects of the crossing of; of man, formation of the; of man, children of the; beardless, aversion of, to hairs on the face.
Raffles, Sir S., on the banteng.
Rafts, use of.
Rage, manifested by animals.
Raia batis, teeth of.
Raia clavata, female spined on the back; sexual difference in the teeth of.
Raia maculata, teeth of.
Rails, spur-winged.
Ram, mode of fighting of the; African, mane of an; fat-tailed.