ii. 301.
HOFACKER, persistency of colour in horses, i. 51, ii. 21;
production of dun horses from parents of different colours, i. 59;
inheritance of peculiarities in handwriting, ii. 6;
heredity in a one-horned stag, ii. 12;
on consanguineous marriages, ii. 123.
HOG, Red River, ii. 150.
HOGG, Mr., retardation of breeding in cows by hard living, ii. 112.
HOLLAND, Sir H., necessity of inheritance, ii. 2;
on hereditary diseases, ii. 7;
hereditary peculiarity in the eyelid, ii. 8;
morbid uniformity in the same family, ii. 17;
transmission of hydrocele through the female, ii. 52;
inheritance of habits and tricks, ii. 395.
HOLLY, varieties of the, i. 360, 362;
bud-reversion in, i. 384;
yellow-berried, ii. 19, 230.
HOLLYHOCK, bud-variation in, i. 378;
non-crossing of double varieties of, ii. 107;
tender variety of the, ii. 310.
HOMER, notice of Geese, i. 287;
breeding of the horses of Aeneas, ii. 202.
HOMOLOGOUS parts, correlated variability of, ii. 322-331, 354-355;
fusion of, ii. 393;
affinity of, ii. 339-342.
HOOFS, correlated with hair in variation, ii. 325.
HOOK-BILLED DUCK, skull figured, i. 282.
HOOKER, Dr. J. D., forked shoulder-stripe in Syrian asses, i. 63;
voice of the cock in Sikkim, i. 259;
use of Arum-roots as food, i. 307;
native useful plants of Australia, i. 311;
wild walnut of the Himalayas, i. 356;
variety of the plane tree, i. 362;
production of _Thuja orientalis_ from seeds of _T. pendula_, i. 362;
singular form of _Begonia frigida_, i. 365;
reversion in plants run wild, ii. 33;
on the sugar-cane, ii. 169;
on Arctic plants, ii. 256;
on the oak grown at the Cape of Good Hope, ii. 274;
on _Rhododendron ciliatum_, ii. 277;
stock and mignonette, perennial in Tasmania, ii. 305.
HOPKIRK, Mr., bud-variation in the rose, i. 381;
in _Mirabilis jalapa_, i. 382;
in _Convolvulus tricolor_, i. 408.
HORNBEAM, heterophyllous, i. 362.
HORNED fowl, i. 229;
skull figured, i. 265.
HORNLESS cattle in Paraguay, i. 89.
HORNS of sheep, i. 95;
correlation of, with fleece in sheep, ii. 326;
correlation of, with the skull, ii. 333;
rudimentary in young polled cattle, ii. 315;
of goats, i. 102.
HORSES, in Swiss lake-dwellings, i. 49;
different breeds of, in Malay Archipelago, i. 49;
anomalies in osteology and dentition of, i. 50;