My dear Sir

I am much obliged for the extract from the Gardeners Chronicle. I think that you have done good service in explaining the Russian case, though no doubt it is hydra-headed and will again some day re-appear. It is a capital instance of one var. gradually beating out another.¹ With respect to the so-called cotyledons of the Gramineæ, I did not know enough to form any independent judgment, so thought that I had better simply follow Sachs, though I did so with some misgiving.—² I am sorry that I do not remember where I put M^r. Henslow’s note: I did not throw it away, but have no clue where to look for it.—³ I believe that M^r. Henslow is a very obliging man and would, I dare say, give you the desired information.

Pray believe me, my dear Sir | Yours very faithfully | Charles Darwin