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Silliman, Benjamin, Jr in correspondent 
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From:
Benjamin Silliman, Sr; Benjamin Silliman, Jr
To:
Charles Robert Darwin; William John Hamilton
Date:
24 May 1839
Source of text:
Geological Society of London (GSL/L/R/233)
Summary:

Thanks for copies of the Proceedings of the Geological Society of London, with a request for items (listed) missing from their set.

Offer to supply, if they can, any copies missing from the Geological Society’s run of the American Journal of Science.

Contributor:
Darwin Correspondence Project
From:
Benjamin Silliman, Jr
To:
Charles Robert Darwin
Date:
27 Oct 1860
Source of text:
Darwin Pamphlet Collection–CUL (bound with Silliman 1851)
Summary:

On the suggestion of Jeffries Wyman, he writes about the rats that he captured in Mammoth Cave in 1850. They were indeed blind. Reginald Mantell studied them and learned that with long exposure to graduated light, they became somewhat sensitised. Sends copy of an abstract which he wrote as a letter to A. H. Guyot ["On the Mammoth Cave of Kentucky", Am. Journal of Sci. and Arts 2d ser. 11 (1851)]. [See 3007.]

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Benjamin Silliman, Jr
Date:
4 Dec [1860]
Source of text:
Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Summary:

Thanks for information on cave rat.

CD is obliged for news of J. D. Dana’s recovery.

Will use BS’s information about cave rat in revised [3d] edition of Origin.

Contributor:
Darwin Correspondence Project