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Darwin, C. R. in correspondent 
Rivers, Thomas in correspondent 
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From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
21 Jan 1863
Source of text:
DAR 176: 160
Summary:

Sends some trees to CD.

Would be pleased to receive the copy of Origin offered by CD as gift.

Will give CD any tree or shrub he may want.

Refers to curious strawberry hybrids noticed in Journal of Horticulture [I. Anderson-Henry, "Crossing strawberries", J. Hortic. n.s. 4 (1863): 45–6].

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
26 Jan 1863
Source of text:
DAR 176: 161
Summary:

Thanks CD for Origin.

TR has often thought naturalists do not pay enough attention to the effect of site, soil, and climate on animals and plants and "hence has arisen the enormous number of so-called species".

His observations on people of different counties.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
30 Jan 1863
Source of text:
DAR 176: 162
Summary:

Asks CD’s views on TR’s observations that leaves breathe from their under-surfaces.

Peach-trees in hothouses cannot be kept in health unless fresh air is admitted so as to make its way under the leaves.

Continues his observations on the effect of environment on men – those migrating to America gradually assuming Indian-like features.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
[3 Feb 1863]
Source of text:
DAR 46.1: 95
Summary:

His observations of "selection" in growth of seedling trees.

Contributor:
Darwin Correspondence Project
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From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
6 Jan [1865]
Source of text:
DAR 176: 163
Summary:

Thanks CD for his paper on Lythrum [Collected papers 2: 106–31].

Astonished by CD’s powers of observation and perseverance.

His elms raised from three varieties of weeping elms are doing well.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
6 July 1865
Source of text:
DAR 176: 164
Summary:

Thanks CD for "Climbing plants" [see 4861].

Encloses sketch of a climbing French bean.

Tells of a row of non-climbing haricot beans that in good season put out slender climbing shoots.

He has the peach almond in fruit this season.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
17 May 1866
Source of text:
DAR 176: 165
Summary:

Will be sure to send the Cytisus and Laburnum blooms when they flower.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
20 May 1866
Source of text:
DAR 176: 166; 176: 188.1
Summary:

Sends a sketch of the haricot climbing the shoot of the plum-tree [see 4866].

Hopes to see CD at the [Horticultural] Congress on Wednesday [30 May].

Sends data on movement direction of Wisteria shoots.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
6 June 1866
Source of text:
DAR 176: 167
Summary:

Sends blooms of Cytisus purpureus-elongatus.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
8 Oct 1866
Source of text:
DAR 176: 168
Summary:

Has searched scores of purple-fruited nut-trees, but not a nut is to be found. Has heard there are some nearby and will send them as soon as he receives them.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
14 Oct 1866
Source of text:
DAR 176: 169
Summary:

Sends CD a letter from Mr Claydon responding to TR’s doubts and confirming the truth of a report that a farmer had "transmuted" oats into barley.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
26 Apr 1867
Source of text:
DAR 176: 170
Summary:

Sends a root of a wild oat-grass from California and the root of a variety of barley that came from it. Several varieties of barley, all differing from English varieties, came up in the same bed of oat-grass. "The transmutation of a genus seems almost incredible" but TR has seen so many changes he has ceased to doubt strongly.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
9 Sept 1867
Source of text:
DAR 176: 171
Summary:

Reports on a curious cross in peach varieties, in which the male made a firm large peach into a fruit more almond-like than itself.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
31 Jan 1868
Source of text:
DAR 176: 172
Summary:

Thanks CD for sending him Variation and for honouring his name by its frequent mention in the work.

Contributor:
Darwin Correspondence Project
From:
Thomas Rivers
To:
Charles Robert Darwin
Date:
29 Mar 1872
Source of text:
DAR 176: 173
Summary:

Sends two vines for CD’s experiments, with instructions for grafting.

Mentions a hybrid plum–peach.

Contributor:
Darwin Correspondence Project