examination of his theory of germ-plasm or heredity, [48], [85];

on the stability and continuity of germ-plasm, [49], [63], [66], [86-89], [91-93], [99-100], [103-105], [107], [109-110], [112-114], [120], [151], [158];

comparison of his theory with those of Darwin and Galton, [51], [58];

on Strasburger’s criticism of his theory, [52];

on the multiplication of germ-plasm in the general cellular tissues of plants, [53];

on regeneration in plants, [53];

anticipated by Galton, [59], [68];

and Galton, [63], [130] et seq.;

on transmission of acquired characters, [67], [83], [96], [111], [127];

and his critics, [70];