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To Gaston de Saporta   12 August 1876

Summary

Thanks GdeS for his Recherches sur les végétaux fossiles [1876].

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  12 Aug 1876
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-10568

From Gaston de Saporta   2 September 1876

Summary

Claims to have proved the great antiquity of several plant races. But this does not contradict the tendency to vary. Insists that heredity can make permanent varieties of sufficient duration to occur as fossils.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  2 Sept 1876
Classmark:  DAR 177: 33
Letter no:  DCP-LETT-10587

To Gaston de Saporta   10 September 1876

Summary

Hopes GdeS will publish on subjects discussed in his letter [10587]. CD had noted similar persistence of variation in fossil shells.

Calls his attention to Nägeli’s work on Hieracium.

Expresses skepticism about O. Heer’s view that dicotyledonous plants developed suddenly. Believes they must have developed slowly in some part of the globe completely isolated from other regions.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  10 Sept 1876
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-10591

To Gaston de Saporta   11 October 1877

Summary

Thanks GdeS for communicating his discovery. It is especially important at a time when several naturalists have declared that development occurs quite suddenly at intervals. Joseph Le Conte in N. America urges that even new families and orders are developed within an extremely short period.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  11 Oct 1877
Classmark:  DAR 147: 422
Letter no:  DCP-LETT-11179

From Gaston de Saporta   16 December 1877

Summary

He has heard CD is about to be elected to the Académie des Sciences.

Cross and self-fertilisation, with its emphasis on insect pollination, helps explain the problem he has worked on for so long: i.e., the rapid diversification of angiosperms in the fossil record occurs in conjunction with the diversification of insects.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  16 Dec 1877
Classmark:  DAR 177: 34
Letter no:  DCP-LETT-11281

To Gaston de Saporta   24 December 1877

Summary

Such honours as proposal for election to Institut affect CD very little.

GdeS’s idea that dicotyledonous plants were not developed until sucking insects evolved is a splendid one. The suggestion that fertilisation of the surviving members of the most ancient dicotyledons should be studied is a good one. CD hopes GdeS will keep it in mind.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  24 Dec 1877
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-11287

To Gaston de Saporta   31 January 1878

Summary

Has sent GdeS’s drawing to Hooker. He, Oliver, and Thiselton-Dyer have been perplexed by it.

L. Lesquereux’s discoveries in the Cincinnati Lower Silurian beds.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  31 Jan 1878
Classmark:  Petit and Théodoridès 1959, pp. 210–11
Letter no:  DCP-LETT-11341

To Gaston de Saporta   4 February [1878]

Summary

The Permian fossil sent by GdeS has stirred up the Kew botanists. Hooker suggests it was a Ceratopteris.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  4 Feb [1878]
Classmark:  Conry 1972, p. 118
Letter no:  DCP-LETT-11347

From Gaston de Saporta   16 February 1878

Summary

Discusses the difficulty of reconstructing angiosperm phylogeny.

Discovery of polar fossil plants helps explain migrations.

Hooker has identification of GdeS’s Permian fossil.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  16 Feb 1878
Classmark:  DAR 177: 35
Letter no:  DCP-LETT-11363

From Gaston de Saporta   9 August 1878

Summary

Congratulations on election to the French Academy of Sciences, Botany Section.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  9 Aug 1878
Classmark:  DAR 177: 36
Letter no:  DCP-LETT-11648

To Gaston de Saporta   15 August 1878

Summary

It would be false to pretend he cares very much about his election to the Institut.

Glad to hear GdeS plans to publish a work on the more ancient fossil plants. Hopes he will report also on the more recent Tertiary forms because the close gradation of such forms is "a fact of paramount importance for the principle of evolution".

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  15 Aug 1878
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-11661

To Gaston de Saporta   22 December 1878

Summary

Thanks for GdeS’s Le monde des plantes [1879].

CD has just read "Végétation polaire" [C. R. Congr. Int. Sci. Geogr. 1 (1878): 197–242] with interest. Hooker gave it conspicuous place in his Royal Society Address (1878).

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  22 Dec 1878
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-11803

From Gaston de Saporta   16 January 1879

Summary

Sends his photograph; asks for CD’s.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  16 Jan 1879
Classmark:  DAR 177: 37
Letter no:  DCP-LETT-11830

To Gaston de Saporta   19 January 1879

Summary

Thanks GdeS for his photograph; sends his own. Glad to hear GdeS’s work [Le monde des plantes (1879)] is popular in France.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  19 Jan 1879
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-11835

To Gaston de Saporta   13 February 1881

Summary

Thanks for work sent by GdeS and A. F. Marion [L’évolution du règne végétal 1 (1881)]. CD greatly pleased at boldness with which GdeS expresses his belief in evolution. Some of GdeS’s countrymen have been "a little timid" on this head.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  13 Feb 1881
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-13052

From Gaston de Saporta   10 April 1881

Summary

Sends GdeS and A. F. Marion, L’évolution du règne végétal. Les cryptogames [1881].

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  10 Apr 1881
Classmark:  DAR 177: 38
Letter no:  DCP-LETT-13111

From Gaston de Saporta   6 September 1868

Summary

Strong support for theory of descent.

Observations on palaeobotany of S. France. Most woody angiosperm genera date far back. Magnolia type unchanged. Intermediate fossil species. Ancient species of Quercus persists as variety of modern species. Fossil evidence of ice age.

CD’s works have been an inspiration in France.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  6 Sept 1868
Classmark:  DAR 177: 31
Letter no:  DCP-LETT-6352

To Gaston de Saporta   24 September 1868

Summary

Discusses GdeS’s studies on fossil plants;

response to Origin in France.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  24 Sept 1868
Classmark:  DAR 147: 419
Letter no:  DCP-LETT-6390

From Gaston de Saporta   18 March 1872

Summary

CD insists too strongly, in Descent, on man’s origin from a simian ancestor, rather than some other primate.

Author:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Addressee:  Charles Robert Darwin
Date:  18 Mar 1872
Classmark:  DAR 177: 32
Letter no:  DCP-LETT-8246

To Gaston de Saporta   8 April 1872

Summary

Responds to GdeS’s comments on Descent [see 8246]. Cannot give up belief in close relationship of man to higher Simiae.

Author:  Charles Robert Darwin
Addressee:  Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:  8 Apr 1872
Classmark:  Archives Gaston de Saporta (private collection)
Letter no:  DCP-LETT-8282
Document type
letter (21)
Correspondent
Date
1868 (2)
1872 (2)
1874 (1)
1876 (3)
1877 (3)
1878 (6)
1879 (2)
1881 (2)
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