I strongly suspect that sexes were primordially in distinct individuals; then became commonly united in the same individual, and then in a host of animals and some few plants became again separated.

Do ask Bentham to send a copy of his address to "Dr.H.Muller, Lippstadt, Prussia," as I am sure it will please him GREATLY.
...When in France write me a line and tell me how you get on, and how Huxley is; but do not do so if you feel idle, and writing bothers you.
LETTER 260.

TO R.MELDOLA.
(260/1.

This letter, with others from Darwin to Meldola, is published in "Charles Darwin and the Theory of Natural Selection," by E.B.

Poulton, pages 199 et seq., London, 1896.) Southampton, August 13th, 1873.
I am much obliged for your present, which no doubt I shall find at Down on my return home.