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Letter 2746

Darwin, C. R. to Smith, Frederick (a)

4 Apr [1860]

    Summary Add

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    Variations in sizes of bees' cells.


Down Bromley Kent

Ap. 4th

My dear Sir

I am much obliged for your note.— Whenever you have finally determined about the Bee, not that it is likely that you will find cause to change your opinion, I will carefully measure the diameter of the cells; & if, as I fully believe, they are sensibly larger, the fact will be curious. The more curious, as Reaumur thought the size so fixed, that he proposed this as a universal standard of measurements for mankind!

Thanks for information about the genera allied to Pompilus, which I did not know.— I had heard of Calathus & wish I knew where I could obtain more special information,—viz whether all the gradations in size of wing occur in the same place, or whether the variations are local, &c &c.—

With sincere thanks for your never-failing kindness, believe me | My dear Sir | Yours sincerely | C. Darwin

P.S Waterhouse wants much to see the gradation between common & Drone cells.—

    Footnotes Add

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    f1 2746.f1
    Dated by the relationship to the letter from Frederick Smith, 3 April 1860.
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    f2 2746.f2
    R´eaumur 1734--42, 5: 398--9.
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    f3 2746.f3
    See letter to G. R. Waterhouse, 1 April [1860].
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