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From Hermann Hoffmann   10 January 1876

Summary

Bug on Tilia, cited in Variation, was Cimex apterus.

Author:  Karl Heinrich Hermann (Hermann) Hoffmann
Addressee:  Charles Robert Darwin
Date:  10 Jan 1876
Classmark:  DAR 166: 230
Letter no:  DCP-LETT-10353

From Hermann Hoffmann   4 July 1877

Summary

Reports monstrous Papaver hybridum not mentioned in M. T. Masters’ Teratology [1869].

Author:  Karl Heinrich Hermann (Hermann) Hoffmann
Addressee:  Charles Robert Darwin
Date:  4 July 1877
Classmark:  DAR 166: 231
Letter no:  DCP-LETT-11035

From Hermann Hoffmann   23 June 1870

Summary

Sends drawings of the foot of chicken showing swimming membrane.

Author:  Karl Heinrich Hermann (Hermann) Hoffmann
Addressee:  Charles Robert Darwin
Date:  23 June 1870
Classmark:  DAR 193: 113–14
Letter no:  DCP-LETT-7242

From Hermann Hoffmann   8 October 1870

Summary

Cancelled. Now enclosure to S7695.

Author:  Karl Heinrich Hermann (Hermann) Hoffmann
Addressee:  Charles Robert Darwin
Date:  
Classmark:  DAR 193: 114
Letter no:  DCP-LETT-7338F

From Hermann Hoffmann   17 April 1871

Summary

Comments on Descent.

Reports a case of protective coloration of bugs on Tilia

and observations on frogs fighting [see Descent, 2d ed., pp. 281, 350].

Encloses drawings of chicken feet.

Author:  Karl Heinrich Hermann (Hermann) Hoffmann
Addressee:  Charles Robert Darwin
Date:  17 Apr 1871
Classmark:  DAR 166: 229
Letter no:  DCP-LETT-7695

To Hermann Hoffmann   20 April [1871]

Summary

Obliged for letter about dog.

Comments on HH’s article ["Zur Geschlechtsbestimmung", Bot. Ztg. 29 (1871): 81–9, 97–109].

Author:  Charles Robert Darwin
Addressee:  Karl Heinrich Hermann (Hermann) Hoffmann
Date:  20 Apr [1871]
Classmark:  DAR 145: 133
Letter no:  DCP-LETT-7702
Document type
letter (6)
Correspondent
Date
1870 (2)
1871 (2)
1876 (1)
1877 (1)
letter