I trust that you will publish full details on this subject and on the direct action of pollen (206/2.

See Prof.Hildebrand, "Bot.

Zeitung," 1868, and "Variation of Animals and Plants," Edition II., Volume I., page 430.
A yellow-grained maize was fertilised with pollen from a brown-grained one; the result was that ears were produced bearing both yellow and dark-coloured grains.): I hope that you will be so kind as to send me a copy of your paper.

If I had succeeded in making a graft-hybrid of the potato, I had intended to raise seedlings from the graft-hybrid and from the two parent-forms (excluding insects) and carefully compare the offspring.

This, however, would be difficult on account of the sterility and variability of the potato.