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From Benjamin Dann Walsh   29 April – 19 May 1864

Summary

Recalls being introduced to CD when [undergraduate] at Cambridge.

Sends CD some of his pamphlets

and expresses support of Origin.

Has discovered there are "3 sexes" in the solitary Cynips as well as social insects.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  29 Apr – 19 May 1864
Classmark:  DAR 181: 9
Letter no:  DCP-LETT-4477

From B. D. Walsh   7 November 1864

Summary

Notes Louis Agassiz’s opinions on CD’s views.

Mating and sexual organs of insects.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  7 Nov 1864
Classmark:  DAR 181: 10
Letter no:  DCP-LETT-4663

From Benjamin Dann Walsh   1 March 1865

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.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  1 Mar 1865
Classmark:  Field Museum of Natural History, Chicago
Letter no:  DCP-LETT-4778

From B. D. Walsh   29 May 1865

Summary

Discusses several subjects, including examples of "Unity of coloration",

the origin of gall-producing poison,

Wagner’s theory of viviparous larvae,

and stridulation in insects.

Sends a reference supporting CD’s statement in Origin that flies check propagation of horses and cattle.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  29 May 1865
Classmark:  DAR 47: 179, 179a; DAR 207: 18
Letter no:  DCP-LETT-4839

From B. D. Walsh   12 November 1865

Summary

Acknowledges CD’s paper on "Climbing plants".

Mentions Asa Gray’s complimentary notice in Silliman’s Journal [Am. J. Sci. and Arts 2d ser. 40 (1865): 273–82].

His difficulty in understanding how males of Daphnia or any other genus can produce eggs. If there is no impregnation, how can there be sexual organs? Why call one form male and another female?

He has sent CD his paper on "the new Potato Bug".

Will soon send "On Phytophagi Species & Unity of Coloration". [phytophagic!?]

Complaints about practices of the English Post Office.

His current research and description of the rationale of his experiments.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  12 Nov 1865
Classmark:  Field Museum of Natural History, Chicago (Riley bequest of 1948)
Letter no:  DCP-LETT-4934A

From Benjamin Dann Walsh   13 March 1866

Summary

On the "bullae" as constant, regular generic characters in Hymenoptera. Disagrees with Louis Jurine ["Observations sur les ailes des hyménoptères", Mem. Accad. Sci. Torino 24 (1820): 177–214].

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  13 Mar 1866
Classmark:  Field Museum of Natural History, Chicago
Letter no:  DCP-LETT-5034

From B. D. Walsh   17 July 1866

Summary

On H. A. Dubois’ attack on "Darwin, Huxley and Lyell"

and H. J. Clark’s Mind in nature [1865].

BDW’s work [on Cynipidae].

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  17 July 1866
Classmark:  Field Museum of Natural History, Chicago
Letter no:  DCP-LETT-5159

From B. D. Walsh   [28 November 1866]

Summary

Says Jacob W. Velie wants to exchange birds’ skins with European naturalist.

Comments on meaning of "Darwinism".

Encloses papers from Practical Entomologist.

Discusses Ornithorhynchus paradoxus

and his paper on willow galls.

Mentions human skull found in California.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  [28 Nov 1866]
Classmark:  American Philosophical Society (Mss.B.D25.324a)
Letter no:  DCP-LETT-5319

From Benjamin Dann Walsh   [25 February 1867]

Summary

Sends a copy [missing] of a lecture by L. Agassiz on glaciers.

Claims worker wasps can generate additional workers in the absence of the fertile female.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  [25 Feb 1867]
Classmark:  Darwin Library–CUL (bound with Siebold 1857), ML 1: 248–9
Letter no:  DCP-LETT-5419

From B. D. Walsh   [before 31 October 1868]

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Summary

Beginning of extract from William Dell Hartman’s "Journal of the doings of Cic[ada?] septemdecim" [unidentified] in Pennsylvania in 1851.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  [before 31 Oct 1868]
Classmark:  DAR 81: 145
Letter no:  DCP-LETT-5755

From B. D. Walsh   25 March 1868

Summary

Sexual preference in insects;

structures for seizing females;

coloration.

Doubts whether CD can make much of a case from insects in support of sexual selection.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  25 Mar 1868
Classmark:  DAR 82: A90–1; A117–18, DAR 85: B65
Letter no:  DCP-LETT-6051

From B. D. Walsh   1 May 1868

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Summary

BDW believes the coloration of species [of Anthocaris] provides a case of sexual selection.

The state of entomology in the U. S.; Darwinism now a common creed, especially among entomologists.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  1 May 1868
Classmark:  DAR 82: A115–16
Letter no:  DCP-LETT-6156

From B. D. Walsh   29 August 1868

Summary

On the delay in receiving CD’s new book [Variation] and his delight in a borrowed copy.

Encloses a Prospectus on his new periodical "American Entomologist" devoted to economic entomology.

Comments on the talents of his young partner, C. V. Riley.

Requests photographs for Riley of CD and Westwood.

Dr J. L. Le Conte has not yet received the request that he furnish CD with information about the stridulatory organs of Coleoptera.

Author:  Benjamin Dann Walsh
Addressee:  Charles Robert Darwin
Date:  29 Aug 1868
Classmark:  Smithsonian Libraries and Archives (Dibner Library of the History of Science and Technology: Charles Valentine Riley papers, Scrapbook no. 9, p. 61); DAR 47: 180; DAR 193: 54; Field Museum (pasted into C. V. Riley’s personal copy of his own 1st Annual Report of the Missouri State Entomologist)
Letter no:  DCP-LETT-6332A
Document type
letter (13)
Author
Addressee
Correspondent
Date
1864 (2)
1865 (3)
1866 (3)
1867 (1)
1868 (4)