To Henry Doubleday [before 5 February 1857]
Summary
Have all varieties been bred from the same set of eggs so that there can be no doubt they are all the same species?
Author: | Charles Robert Darwin |
Addressee: | Henry Doubleday |
Date: | [before 5 Feb 1857] |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-2032 |
To Henry Doubleday 8 January [1857]
Summary
Thanks for a kind note, and asks not to answer until better.
Author: | Charles Robert Darwin |
Addressee: | Henry Doubleday |
Date: | 8 Jan [1857] |
Classmark: | Dr Heather Whitney (private collection) |
Letter no: | DCP-LETT-2037F |
To Henry Doubleday 1 March [1868]
Summary
Has been interested in copy of HD’s letter to H. T. Stainton on numerical proportions of the sexes of insects. Do they vary during different years?
Does he have opinions about the courtships of butterflies?
Will send a copy of his paper on Primula when it is published. [See 5997.]
Author: | Charles Robert Darwin |
Addressee: | Henry Doubleday |
Date: | 1 Mar [1868] |
Classmark: | George W. Platzman (private collection) |
Letter no: | DCP-LETT-5966A |
To Henry Doubleday 20 March [1868]
Summary
CD asks about HD’s observation of sexual call of Coleoptera.
Also comments on statements by collectors that they breed more females than males from caterpillars. CD had thought this might be accounted for by the collection of largest and finest caterpillars, but Alexander Wallace says the collectors take large and small equally. Does HD agree with Wallace?
Author: | Charles Robert Darwin |
Addressee: | Henry Doubleday |
Date: | 20 Mar [1868] |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-6027 |
To Henry Doubleday 15 April [1868]
Summary
Submits lists of insects [missing] for correspondent to check whether brightly coloured. Wants to determine whether there is any relation between bright colouring, whether in both sexes or one alone, and an unequal number of males and females.
Author: | Charles Robert Darwin |
Addressee: | Henry Doubleday |
Date: | 15 Apr [1868] |
Classmark: | DAR 82: 121-2 |
Letter no: | DCP-LETT-6123 |
From Henry Doubleday 26 January 1857
Summary
Sends specimens of Tortrix, which illustrate the extraordinary variation of markings in two or three species. In every family of Lepidoptera there seem to be species extremely prone to vary and in some localities they vary more than in others.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 26 Jan 1857 |
Classmark: | DAR 162: 235 |
Letter no: | DCP-LETT-2044 |
From Henry Doubleday 5 February 1857
Summary
The variations of Peronea caused A. H. Haworth and J. F. Stephens to create 30 or 40 species based on colour and markings. HD was first to be convinced these would be reduced to two.
Discusses species that closely resemble one another;
cites species that differ in variation in different localities;
in some double-brooded species the broods differ markedly in size and colour.
Encloses his list of varieties of Peronea.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 5 Feb 1857 |
Classmark: | DAR 162: 236 |
Letter no: | DCP-LETT-2047 |
From Henry Doubleday 3 May 1860
Summary
Has read Origin with pleasure.
Has performed many experiments which confirm his opinion that primrose, oxlip, and cowslip are three distinct species.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 3 May 1860 |
Classmark: | DAR 162.2: 237 |
Letter no: | DCP-LETT-2781 |
From Henry Doubleday 16 May 1860
Summary
Answers CD’s questions about his experiments with primroses, cowslips, and oxlips. HD is aware experiments must often be repeated many times. Has never met with the oxlip except where primrose and cowslip grow together.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 16 May 1860 |
Classmark: | DAR 162.2: 238 |
Letter no: | DCP-LETT-2804 |
From Henry Doubleday 8 March 1868
Summary
Proportion of sexes in Lepidoptera.
Sexual preference.
Role of coloration [see Descent 1: 311–12].
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 8 Mar 1868 |
Classmark: | DAR 85: B47–8 |
Letter no: | DCP-LETT-5997 |
From Henry Doubleday 28 March 1868
Summary
On the proportion of sexes in moths; Lepidoptera females command higher prices; quotes Staudinger’s catalogue [see Descent 1: 311–12].
Ticking of Anobium tessellatum [see Descent 1: 385].
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 28 Mar 1868 |
Classmark: | DAR 82: A11–12, DAR 86: A94 |
Letter no: | DCP-LETT-6064 |
From Henry Doubleday 3 April 1868
Summary
Otto Staudinger’s catalogue shows prices of female Lepidoptera to be higher than those of males.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 3 Apr 1868 |
Classmark: | DAR 81: 78, DAR 82: A8 |
Letter no: | DCP-LETT-6087 |
From Henry Doubleday 22 April 1868
Summary
On proportion of sexes;
coloration of sexes in Lepidoptera.
Sexual attraction of female Saturnia carpini.
Author: | Henry Doubleday |
Addressee: | Charles Robert Darwin |
Date: | 22 Apr 1868 |
Classmark: | DAR 82: A9–10 |
Letter no: | DCP-LETT-6139 |
Doubleday, Henry | (8) |
Darwin, C. R. | (5) |
Darwin, C. R. | (8) |
Doubleday, Henry | (5) |