on variation, ii. [256], [257];

effects of grafting, i. 387, ii. [278];

bud-variation in a plum, ii. [289];

compulsory flowering of early potatoes, ii. [343];

correlated variation of head and limbs, ii. [323].

Knox, Mr., breeding of the eagle owl in captivity, ii. [154].

Koch, degeneracy in the turnip, i. 325.

Kohlrabi, i. 323.

Kölreuter, reversion in hybrids, i. 392, ii. [36];

acquired sterility of crossed varieties of plants, i. 358, ii. [101];