in the Swiss lake-dwellings, i. 317-319;
selection applied to, i. 318, ii. [200];
increased fertility of hybrids of, with Ægilops, ii. [110];
advantage of change of soil to, ii. [146];
differences of, in various parts of India, ii. [165];
continuous variation in, ii. [200];
red, hardiness of, ii. [229], [336];
Fenton, ii. [232];
natural selection in, ii. [233];
varieties of, found wild, ii. [260];