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To J. J. Weir   29 June [1870]

Summary

On birds erecting feathers.

Comments on production of buds in Cytisus.

Discusses case of rabbit-breeding which affected subsequent progeny of female.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  29 June [1870]
Classmark:  DAR 148: 327
Letter no:  DCP-LETT-7253

From J. J. Weir   4 July 1870

Summary

On mutations in rabbits.

Cytisus case is not a double graft.

Aggressive behaviour of birds of prey.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  4 July 1870
Classmark:  DAR 181: 83
Letter no:  DCP-LETT-7264

To J. J. Weir   16 October 1871

Summary

Cannot accept JJW’s invitation to a party. His health has been worse than usual for some months – can see no one nor can he go anywhere.

Is preparing a cheap edition of the Origin [6th] and will answer Mivart’s objections.

CD is pleased JJW likes C. Wright’s "Darwinism" [see 7940]. Huxley will publish a splendid review of it in Contemporary Review [Nov 1871].

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  16 Oct 1871
Classmark:  Oxford University Museum of Natural History (Hope Entomological Collections 1349)
Letter no:  DCP-LETT-8013

To J. J. Weir   19 October 1871

Summary

"Like you I have often wondered at the different food of the old and young, as with graminivorous birds feeding their young with insects."

Recommends forthcoming book by John Lubbock [Monograph of the Collembola and Thysanura (1873)].

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  19 Oct 1871
Classmark:  DAR 148: 328
Letter no:  DCP-LETT-8018

To J. J. Weir   30 April [1872]

Summary

Not surprised incipient disease in female would make her unattractive to male.

Sorry JJW’s official duties are so heavy.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  30 Apr [1872]
Classmark:  DAR 148: 329
Letter no:  DCP-LETT-8303

From J. J. Weir   31 July 1872

Summary

On variegated leaves; a feature not inherited consistently.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  31 July 1872
Classmark:  DAR 181: 84
Letter no:  DCP-LETT-8440

To J. J. Weir   31 July [1872]

Summary

Thanks for new case.

Not very well.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  31 July [1872]
Classmark:  DAR 148: 330
Letter no:  DCP-LETT-8441

From J. J. Weir   14 August 1872

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Summary

Hostility of birds toward others with same colour;

nuptial plumage.

Spiza cyanea and Spiza ciris.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  14 Aug 1872
Classmark:  DAR 88: 177–8
Letter no:  DCP-LETT-8470

To J. J. Weir   18 September [1873]

Summary

JJW is quite at liberty to use CD’s name as patron of cat show.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  18 Sept [1873]
Classmark:  Boston Medical Library in the Francis A. Countway Library of Medicine (B MS Misc.)
Letter no:  DCP-LETT-8524

To J. J. Weir   22 May 1873

Summary

Has no doubt he will find JJW’s address interesting.

Thinks same spot for nesting might prove attractive to birds, though they had had no intercommunication.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  22 May 1873
Classmark:  Bernard Quaritch (dealers) (2003, 2007)
Letter no:  DCP-LETT-8919

From J. J. Weir   13 November 1873

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Summary

Hybrid Motacilla.

Case of female duck leaving mate to pair with male of another species.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  13 Nov 1873
Classmark:  DAR 88: 179–80
Letter no:  DCP-LETT-9139

To J. J. Weir   1 May 1875

Summary

August Weismann is interested in JJW’s experiments on birds and the caterpillars they eat.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  1 May 1875
Classmark:  American Philosophical Society (Mss.B.D25.468)
Letter no:  DCP-LETT-9962
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letter (72)
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1868 (37)
1869 (7)
1870 (6)
1871 (2)
1872 (4)
1873 (3)
1875 (9)
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