In a letter to Hooker, May 22nd, 1860, Darwin wrote: "Have you Pyrola at Kew?
if so, for heaven's sake observe the curvature of the pistil towards the gangway to the nectary." The fact of the stigma in insect-visited flowers being so placed that the visitor must touch it on its way to the nectar, was a point which early attracted Darwin's attention and strongly impressed him.) My blessed little Scaevola has come into flower, and I will try artificial fertilisation on it.
I have looked over Harvey's letter, and have assumed (I hope rightly) that he could not object to knowing that you had forwarded it to me.
LETTER 104.

TO ASA GRAY.

Down, June 8th [1860].
I have to thank you for two notes, one through Hooker, and one with some letters to be posted, which was done.

I anticipated your request by making a few remarks on Owen's review.

(104/1.