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Letter 2130

Darwin, C. R. to Hooker, J. D.

1 Aug [1857]
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    Important issue at stake with new flora calculations: evidence that species are only strongly marked varieties. Planning large-scale survey.

Transcription

Down Bromley Kent

Aug 1st

My dear Hooker

It is a horrid bore you cannot come soon, & I reproach myself that I did not write sooner, but I had fancied Mrs Hooker's confinement was later. N.B. I found that I could do with giving much less Chloroform last time, for I never gave it till she skriked out for it, & yet she never suffered at all.—

How busy you must be! with such a heap of Botanists at Kew.— Only think I have just had letter from Henslow, saying he will come here between 11th & 15th! Is not that grand? Many thanks about Furnrohr: I must humbly supplicate Kippist to search for it.: he most kindly got Boreau for me.—

I am got extremely interested in tabulating according to mere size of genera, the species having any varieties marked by greek letters or otherwise: the result (as far as I have yet gone seems to me one of the most important arguments I have yet met with, that varieties are only small species—or species only strongly marked varieties. The subject is in many ways so very important for me; I wish much you would think of any well-worked Floras with from 1000–2000 species, with the varieties marked. It is good to have hair-splitters & lumpers.— I have done or am doing. Babington Henslow British Flora London Catalogue. H. C. Watson Boreau. France Miquel. Holland Asa Gray. N. U. States Hooker. N. Zealand ——— Fragment of Indian Flora Wollaston Madeira Insects.

Has not Koch published good Germany Flora: does he mark varieties? Could you lend it me? Is there not some grand Russian Flora which perhaps has vars. marked.— The Floras ought to be well known.—

I am in no hurry for a few weeks.— Will you turn this in your head, when, if ever, you have leisure. The subject is very important for my work, though I clearly see many causes of error.—

Do not forget that you must come before very long here.— Most sincerely do I wish Mrs Hooker through her troubles

Ever yours | C. Darwin

    Footnotes Add

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    f1 2130.f1
    The year is given by the reference to Frances Harriet Hooker's imminent confinement (see n. 2, below).
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    f2 2130.f2
    The Hookers' fourth child, Marie Elizabeth Hooker, was born on 10 August 1857.
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    f3 2130.f3
    For CD's earlier remarks concerning the administration of chloroform during childbirth, see Correspondence vol. 4, letters to W. D. Fox, [17 January 1850] and [May 1850], and Correspondence vol. 5, letter to J. D. Hooker, 27 [June 1854], and letter from J. D. Hooker, [29 June 1854]. The proper dosage of chloroform had recently been the subject of discussion in various medical journals following an increase in the number of deaths resulting from its use.
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    f4 2130.f4
    See letters to J. S. Henslow, 10 August [1857], and to John Lubbock, 11 August [1857] and 12 [August 1857].
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    f5 2130.f5
    Fürnrohr 1839 and Boreau 1840. See letter to J. D. Hooker, 14 July [1857].
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    f6 2130.f6
    By ‘hair splitters’ CD means those taxonomists who formed many genera, species, and varieties; ‘lumpers’ tended to group diverse forms together as one species or genus.
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    f7 2130.f7
    Babington 1851.
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    f8 2130.f8
    Henslow 1835.
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    f9 2130.f9
    Watson and Syme eds. 1853.
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    f10 2130.f10
    Miquel 1837.
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    f11 2130.f11
    A. Gray 1856a.
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    f12 2130.f12
    J. D. Hooker 1853–5 and J. D. Hooker and Thomson 1857–8.
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    f13 2130.f13
    Wollaston 1854.
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    f14 2130.f14
    Koch 1843–4.
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    f15 2130.f15
    Ledebour 1842–53 (see letter to J. D. Hooker, 22 August [1857]).
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