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Woodward, S. P. in correspondent 
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1850-1859::1856::07 in date 
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From:
Samuel Pickworth Woodward
To:
Charles Robert Darwin
Date:
15 July 1856
Source of text:
DAR 205.3: 304
Summary:

Has reduced 20 Cyrena species to geographical varieties of one species, Cyrena fluminalis. Hooker is reducing Indian flora at the rate of 19 to 1.

Recommends W. H. Harvey’s Seaside book [1849] and Charles Pickering’s Races of man [1850].

Contributor:
Darwin Correspondence Project
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From:
Samuel Pickworth Woodward
To:
Charles Robert Darwin
Date:
[15 July 1856]
Source of text:
DAR 205.3: 305
Summary:

Lists Lusitanian shells with wide ranges beyond that geographical province.

Antiquity and elevation of land mass is more important than latitude for the distribution of shells.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Samuel Pickworth Woodward
Date:
18 July 1856
Source of text:
DAR 148: 378
Summary:

Thanks for information about variability in shells.

Comments on Harvey’s Seaside book [1849].

"I am growing as bad as the worst about species and hardly have a vestige of belief in the permanence of species left in me".

Contributor:
Darwin Correspondence Project