From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
9 July [1862]
Source of text:
DAR 185: 11
Summary:
Lenny [Leonard Darwin]’s illness.
Polymorphism in valerian and Lythrum salicaria.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[after 14 July 1862]
Source of text:
DAR 185: 12
Summary:
Leonard’s illness.
Polymorphism in valerian and Erythraea.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[2–3 Sept 1862]
Source of text:
DAR 210.6: 103
Summary:
Asks WED to send some specimens [of Lythrum?].
[Letter from Emma Darwin to WED on verso.]
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[2–3 Aug 1862]
Source of text:
DAR 185: 70, DAR 210.6: 102
Summary:
Discusses Lythrum, "a really wonderful case"; asks WED to make observations and collect specimens; sends a diagram which shows what crosses he believes are fertile.
Would like George to watch bees visiting the flowers; wants some pods from different forms to compare shapes and count seeds.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
4 [Nov 1862]
Source of text:
DAR 210.6: 105
Summary:
Discusses a crossing experiment.
Has been counting the seeds in pods [of Lythrum?].
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[10? Sept 1862]
Source of text:
DAR 210.6: 104
Summary:
Gives advice as to whether certain meteorological observations would be worth making.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[25 Oct 1862]
Source of text:
DAR 210.6: 106
Summary:
Asks WED to make some observations on differences in pods of Lythrum.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
30 [Oct 1862]
Source of text:
DAR 210.6: 107
Summary:
Thanks WED for observations on Lythrum.
Discusses family affairs.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
30 Nov [1861]
Source of text:
DAR 210.6: 108
Summary:
Reports on state of family’s health.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[5 May 1863]
Source of text:
DAR 210.6: 110
Summary:
Discusses dimorphic plants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[10 May 1863]
Source of text:
DAR 210.6: 111
Summary:
Thanks WED for his botanical specimens and observations.
Discusses Corydalis and the fertilisation of Fumariaceae.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[25 July 1863]
Source of text:
DAR 210.6: 112
Summary:
Relates events at Down;
asks WED to make some observations on Lythrum.
His present hobby-horse is tendrils.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[14–17 May 1864]
Source of text:
DAR 97: A3
Summary:
Instructions on measuring pollen of dimorphic plants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
3 May [1864]
Source of text:
DAR 97: A8, A10
Summary:
Thanks WED for measuring cowslip pollen. Sends dimorphic flowers.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
5 May [1864]
Source of text:
DAR 185: 13
Summary:
Experiment instructions.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
14 May [1864]
Source of text:
DAR 97: A1–2, A4–5
Summary:
Discusses WED’s observations on polymorphic flowers.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[after 14 Apr – 5 May 1864]
Source of text:
DAR 97: 9
Summary:
Describes difference between Pulmonaria flowers; wishes to know whether it is general.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
19 [June 1866]
Source of text:
DAR 185: 14
Summary:
Different forms of flowers of Rhamnus.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[1 May 1864]
Source of text:
DAR 210.6: 122
Summary:
Writes of dimorphic plants.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
22 June [1866]
Source of text:
DAR 185: 15
Summary:
Polymorphism in Rhamnus.
Contributor:
Darwin Correspondence Project
