In May 1865 he sent a manuscript to his friend Thomas Huxley outlining his theory which he called pangenesis and asking whether he should publish it.
1865年5月，他向他的朋友托馬斯·赫胥黎寄出了一份手稿，大致描述了他自己称作“泛生论”的理论，并问赫胥黎是否应当出版它。