This process I have actually compared with ordinary fertilisation.

The cells thus modified, I suppose cast off in their turn modified gemmules, which again combine with other nascent cells, and so on.

But I must not trouble you any further.
LETTER 226.

TO AUGUST WEISMANN.

Down, October 22nd, 1868.
I am very much obliged for your kind letter, and I have waited for a week before answering it in hopes of receiving the "kleine Schrift" (226/1.