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To J. T. Moggridge   27 August 1873

Summary

Comments on experiments of touching seeds with acid.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  27 Aug 1873
Classmark:  DAR 146: 380
Letter no:  DCP-LETT-9030

To J. T. Moggridge   10 March 1874

Summary

Criticises paper by Ziegler [see 9339].

Acid experiments on seeds have failed.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  10 Mar 1874
Classmark:  DAR 146: 381
Letter no:  DCP-LETT-9349

To J. T. Moggridge   12 June [1874]

Summary

Did not know Duval-Jouve was an evolutionist.

Delighted at JTM’s success with spiders.

On JTM’s experiments with acids on seeds.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  12 June [1874]
Classmark:  DAR 146: 382
Letter no:  DCP-LETT-9490

To J. T. Moggridge   22 June [1871]

Summary

Thanks JTM for information on ants.

Mentions letter "from a Texas gentleman" Gideon Lincecum describing ants that plant seeds [see 3082].

Notes that fly orchid is unattractive to insects. Asks JTM to attempt fertilisation experiment with this plant.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  22 June [1871]
Classmark:  American Philosophical Society (Mss.B.D25.399)
Letter no:  DCP-LETT-7830

To J. T. Moggridge   9 October [1872]

Summary

Discusses JTM’s research on habits of insects. "How incomparably more valuable are such researches than the mere description of a thousand species."

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  9 Oct [1872]
Classmark:  DAR 146: 378
Letter no:  DCP-LETT-8550

To J. T. Moggridge   10 March 1873

Summary

Much obliged for seeds. Will expose seeds to chemical vapours.

Comments on JTM’s spider experiments.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  10 Mar 1873
Classmark:  DAR 146: 379
Letter no:  DCP-LETT-8805

To John Traherne Moggridge   19 June [1864]

Summary

Discusses fertilisation of flowers by bees. Thanks JTM for drawings.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  19 June [1864]
Classmark:  DAR 146: 372
Letter no:  DCP-LETT-4540

To J. T. Moggridge   1[7] July [1864]

Summary

Discusses dimorphism in flowers. Describes his experiments.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  1[7] July [1864]
Classmark:  DAR 146: 373
Letter no:  DCP-LETT-4563

To J. T. Moggridge   13 October [1865]

Summary

Discusses self-fertilisation in bee and spider orchids. Asks JTM to conduct experiment.

Comments on plates [see J. T. Moggridge’s contribution to Flora of Mentone and winter flora of the Riviera, including the coast from Marseilles to Genoa London 1866, 1871. Part II dated 1865; Part I, 1866].

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  13 Oct [1865]
Classmark:  DAR 146: 374
Letter no:  DCP-LETT-4914

To J. T. Moggridge   13 November [1866]

Summary

Discusses fertilisation of peas by bees. Asks for seeds.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  13 Nov [1866]
Classmark:  DAR 146: 375
Letter no:  DCP-LETT-5277

To J. T. Moggridge   1 October [1867]

Summary

Hopes JTM’s health will improve.

Asks for information about crosses of peas.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  1 Oct [1867]
Classmark:  DAR 146: 376
Letter no:  DCP-LETT-5638

To John Traherne Moggridge   7 June 1869

Summary

Glad JTM intends to write a paper. Discusses JTM’s research on Arbutus.

CD’s riding accident.

Author:  Charles Robert Darwin
Addressee:  John Traherne Moggridge
Date:  7 June 1869
Classmark:  DAR 146: 377
Letter no:  DCP-LETT-6777

From J. T. Moggridge   24 July 1873

Summary

CD has clarified the way to conduct the formic acid experiment.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  24 July 1873
Classmark:  DAR 171: 220
Letter no:  DCP-LETT-8986

From J. T. Moggridge   30 July 1873

Summary

His preliminary results with formic acid show that it inhibits germination of several kinds of seed. It also inhibits growing of mildew, which he speculates may facilitate germination.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  30 July 1873
Classmark:  DAR 171: 221
Letter no:  DCP-LETT-8990

From J. T. Moggridge   22 August 1873

Summary

He has added carbolic acid to the seed germination experiments and sends more results on the effect of formic acid. Formic acid inhibits mildew on dough but not on seeds.

Mildew never grows in ants’ nests.

Sends an account, from the Mishnah, of grain stored by ants.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  22 Aug 1873
Classmark:  DAR 171: 222
Letter no:  DCP-LETT-9024

From J. T. Moggridge   4 November 1873

Summary

Formic acid kills seeds but only rarely makes them dormant – as he presumes ants do. He finds great variation in the vigour of individual seeds. Harvester ants, used in place of formic acid, do not affect germination.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  4 Nov 1873
Classmark:  DAR 171: 223
Letter no:  DCP-LETT-9133

From J. T. Moggridge   7 March 1874

Summary

Sends abstract of Martin Ziegler’s paper on sensitive movements in Drosera ["Sur un fait physiologique observé sur des feuilles de Drosera", C. R. Hebd. Acad. Sci. 74 (1872): 1227–9].

JTM’s experiments with formic acid and ants have failed to reveal the secret of the ants, but have taught him a great deal about germination.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  7 Mar 1874
Classmark:  DAR 171: 224
Letter no:  DCP-LETT-9339

From J. T. Moggridge   11 June 1874

Summary

Charles Martins has given the first Darwinian lectures on zoology at Montpellier.

Joseph Duval-Jouve is also a Darwinian. The latter has lost his position as Inspector of the Academy because of his liberal views.

Wallace suggests that a trap-door spider with an exposed nest preys on nocturnal insects.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  11 June 1874
Classmark:  DAR 171: 225
Letter no:  DCP-LETT-9488

From J. T. Moggridge   15 July [1864]

Summary

Sends seeds of Trichonema and bulb and leaves of Romulea rollii, plus specimens showing two forms of Primula marginata.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  15 July [1864]
Classmark:  DAR 110: A29–30
Letter no:  DCP-LETT-4567

From J. T. Moggridge   19 July [1864]

Summary

Offers notes on Romulea rollii with sketch of a dissection.

Author:  John Traherne Moggridge
Addressee:  Charles Robert Darwin
Date:  19 July [1864]
Classmark:  DAR 110: A25a, A25b
Letter no:  DCP-LETT-4570
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letter (43)
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Darwin, C. R.[X]
Moggridge, J. T.[X]
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1865 (4)
1866 (9)
1867 (5)
1869 (4)
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