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DCP-LETT-4778

From:
Benjamin Dann Walsh
To:
Charles Robert Darwin
Date:
1 Mar 1865
Source of text:
Field Museum of Natural History, Chicago
Summary:

Sends his paper on "Willow-galls" [Proc. Entomol. Soc. Philadelphia 3 (1864): 543–644].

Lengthy criticism of Agassiz’s views on species as stated in his Essay on classification [1857].

Interested by CD’s trimorphism in Lythrum. Thinks some great mystery may lie in the fact that in some genera, some species are tri-, some di-, and some monomorphic, and in other genera, Apis, Vespa, Bombus, all the known species are dimorphic.

Contributor:
Darwin Correspondence Project

Herschel4171

From:
Thomas MacKereth
To:
Sir John Herschel
Date:
[1 March 1865]
Source of text:
Harvard: Houghton AAH 67m-67 (94)
Summary:

Doubts that JH put his approval on an article about shooting stars in the 'upper atmosphere' in The Intellectual Observer.

Contributor:
John Herschel Project

Herschel8378

From:
Sir John Herschel
To:
[Admiralty?]
Date:
[1865-3?]
Source of text:
RS:HS 19.176c
Summary:

Objections by Board of Visitors to proposed new railway tunnel near Greenwich observatory.

Contributor:
John Herschel Project
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