of species of strawberries, i. 351-352;
of _Cucurbitae_, i. 357-358;
of flowering plants, i. 364;
of pansies, i. 368.
INTERDIGITAL pits, in goats, i. 102.
INTERMARRIAGES, close, ii. 122-123.
INTESTINES, elongation of, in pigs, i. 73;
relative measurements of parts of, in goats, i. 102;
effects of changed diet on, ii. 302.
_Ipomoea purpurea_, ii. 128.
IRELAND, remains of _Bos frontosus_ and _longifrons_ found in, i. 81.
IRIS, hereditary absence of the, ii. 9;
hereditary peculiarities of colour of the, ii. 9-10.
IRISH, ancient, selection practised by the, ii. 203.
IRON period, in Europe, dog of, i. 18.
ISLANDS, oceanic, scarcity of useful plants on, i. 311.
ISLAY, pigeons of, i. 183.
ISOLATION, effect of, in favour of selection, ii. 233-234.
ITALY, vine growing in, during the bronze period, i. 332.
IVY, sterility of, in the north of Europe, ii. 170.

JACK, Mr., effect of foreign pollen on grapes, i. 400.
JACKAL, i. 24, 27, 30;
hybrids of, with the dog, i. 32;
prepotency of, over the dog, ii. 67.
JACOBIN pigeon, i. 154, 208.
JACQUEMET-BONNEFORT, on the mulberry, i. 334.
JAGUAR, with crooked legs, i. 17.
JAMAICA, feral dogs of, i. 28;
feral pigs of, i. 77;
feral rabbits of, i. 112.
JAPAN, horses of, i. 53.
JAPANESE pig (figured), i. 69.
JARDINE, Sir W., crossing of domestic and wild cats, i. 44.
JARVES, J., silkworm in the Sandwich islands, i. 301.
JAVA, Fantail pigeon in, i. 148.
JAVANESE ponies, i. 53, 59.
JEMMY BUTTON, i. 309.
JENYNS, L., whiteness of ganders, i. 288;
sunfish-like variety of the goldfish, i. 297.
JERDON, J. C., number of eggs laid by the pea-hen, ii. 112;
origin of domestic fowl, i. 237.
JERSEY, arborescent cabbages of, i. 323.
JESSAMINE, i. 394.
JEITTELES, Hungarian sheep-dogs, i. 24;
crossing of domestic and wild cats, i. 44.
JOHN, King, importation of stallions from Flanders by, ii. 203.
JOHNSON, D., occurrence of stripes on young wild pigs in India, i. 76.
JORDAN, A., on Vibert's experiments on the vine, i. 332;
origin of varieties of the apple, i. 350;
varieties of pears found wild in woods, ii. 260.
JOURDAN, parthenogenesis in the silk moth, ii. 364.
JUAN DE NOVA, wild dogs on, i. 27.
JUAN FERNANDEZ, dumb dogs on, i. 27.
_Juglans regia_, i. 356-357.
JUKES, Prof., origin of the Newfoundland dog, i. 42.
JULIEN, Stanislas, early domestication