QUINCE, pears grafted on the.

RABBITS, domestic, their origin. -of Mount Sinai and Algeria. -breeds of. -Himalayan, Chinese, Polish, or Russian. -feral. -of Jamaica. -of the Falkland Islands. -of Porto Santo. -osteological characters of. -discussion of modifications in. -one-eared, transmission of peculiarity of. -reversion in feral. -in the Himalayan. -crossing of white and coloured Angora. -comparative fertility of wild and tame. -falsified experiments in interbreeding of. -high-bred, often bad breeders. -selection of. -white, liable to destruction. -effects of disuse of parts in. -skull of, affected by drooping ears. -length of intestines in. -correlation of ears and skull in. -variations in skull of. -periosteum of a dog producing bone in.

RACEHORSE, origin of.

RACES, modification and formation of, by crossing. -natural and artificial. -Pouchet's views on plurality of. -of pigeons.

RADCLYFFE, W.F., effect of climate and soil on strawberries. -constitutional differences in roses.

RADISHES. -crossing of. -varieties of.

RADLKOFER, retrogressive metamorphosis in mosses and algae.

RAFARIN, M., bud-variation and reversion.

RAFFLES, Sir STAMFORD, on the crossing of Javanese cattle with Bos sondaicus.

RAM, goat-like, from the Cape of Good Hope.