Stigma, variation of the, in cultivated Cucurbitaceæ, i. 359;
satiation of the, i. 402-403.
Stocks, bud-variation in, i. 381;
effect of crossing upon the colour of the seed of, i. 398-399;
true by seed, ii. [20];
crosses of, ii. [93];
varieties of, produced by selection, ii. [219];
reversion by the upper seeds in the pods of, ii. [347]-[348].
Stockholm, fruit-trees of, ii. [307].
Stokes, Prof., calculation of the chance of transmission of abnormal peculiarities in man, ii. [5].