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1860-1869::1862 in date 
Darwin, C. R. in correspondent 
Maw, George in correspondent 
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From:
George Maw
To:
Charles Robert Darwin
Date:
30 June 1862
Source of text:
DAR 99: 5–9
Summary:

Discusses cases of assumed correlation, e.g., facial hair and generative organs, sexual characters in castrated oxen. Finds it difficult to see how correlation of functions which would be useless separately can be accumulated gradually through natural selection.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
George Maw
Date:
3 July [1862]
Source of text:
Royal Horticultural Society, Lindley Library (MAW/1/8)
Summary:

Thinks GM’s Pelargonium is a case of true correlated characters. Feels secondary sexual characters are only accidental correlations; does not see the same necessity for close simultaneous development of certain characters as GM does.

Will forward a copy of his Orchids.

Contributor:
Darwin Correspondence Project
From:
George Maw
To:
Charles Robert Darwin
Date:
7 July 1862
Source of text:
DAR 171.1: 96
Summary:

Thanks CD for sending Orchids.

Reports observations by his uncle relating to the successful breeding of a male mule with a horse.

Contributor:
Darwin Correspondence Project