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DCP-LETT-6820

From:
Charles Robert Darwin
To:
Athenæum
Date:
7 [July] 1869
Source of text:
Athenæum , 17 July 1869, p. 82
Summary:

Because readers have arrived at different answers to the problem of the rate of increase of elephants, CD offers a rule, used by his son George, for calculating the product for any number of generations.

[Letter erroneously dated June.]

Contributor:
Darwin Correspondence Project

DCP-LETT-6819

From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
7 [July 1869]
Source of text:
DAR 210.6: 130
Summary:

Thanks him for his excellent observations [on Epipactis?]; would like WED to watch for some large insect visiting the plant.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6818

From:
Charles Robert Darwin
To:
William Ogle
Date:
7 July [1869]
Source of text:
DAR 261.5: 3 (EH 88205901)
Summary:

Comments on WO’s paper on Salvia [Pop. Sci. Rev. 8 (1869): 261–73], which he admires.

Contributor:
Darwin Correspondence Project

Herschel13559

From:
Sir John Herschel
To:
Thomas Warner
Date:
[7 July 1869]
Source of text:
'Preface to Improved Edition' of Thomas Warner, How To Keep the Clock Right (187
Summary:

Received TW's book and approves simplicity and economy of its method of keeping time by using small fixed telescope to reduce star observations. Disapproves of using 'Dominical Letters.' Suggests using Julian dates.

Contributor:
John Herschel Project

JHC1369

From:
Sir Joseph Dalton Hooker
To:
George Bentham
Date:
7 July 1869
Source of text:
JDH/2/3/2 f.162, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project

Herschel7888

From:
Thomas Warner
To:
Sir John Herschel
Date:
[1869-7-7 or earlier
Source of text:
RS:HS 18.91
Summary:

Please review TW's enclosed new book on civil time-keeping: How to Keep the Clock Right. [JH annotation: Answered 7 July.]

Contributor:
John Herschel Project

DCP-LETT-6821

From:
William Ogle
To:
Charles Robert Darwin
Date:
[after 7 July 1869]
Source of text:
DAR 173: 2
Summary:

WO very gratified by CD’s complimentary remarks on his Salvia article.

Contributor:
Darwin Correspondence Project
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