From Fritz Müller [12 and 31 August, and 10 October 1865]
Summary
FM’s comments on Climbing Plants.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 12 and 31 Aug 1865 and 10 Oct 1865 |
Classmark: | Notes on some of the climbing-plants near Desterro, in South Brazil. By Herr Fritz Müller, in a letter to C. Darwin. [Read 7 December 1865.] Journal of the Linnean Society (Botany) 9 (1866): 344–9. |
Letter no: | DCP-LETT-4881F |
From Fritz Müller 31 August 1865
Summary
Hopes CD has received his letter of 12 August.
Sends some new observations on climbing plants. [The observations are part of "Notes on some of the climbing-plants, near Desterro, in South Brazil", J. Linn. Soc. (Bot.) 9 (1867): 344–9.]
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 31 Aug 1865 |
Classmark: | Möller ed. 1915–21, 2: 73–4. |
Letter no: | DCP-LETT-4885A |
From Fritz Müller 10 October 1865
Summary
Thanks CD for his photograph.
Sends a paper ["Über das Holz einiger um Desterro wachsender Kletterpflanzen", Botanische Zeitung 24 (1866): 57–60, 65–9].
Believes species of sponge with different mineral spiculae are descended from a form with organic spiculae.
Reports observations on motions of Linum stalks following the sun.
Regards Anelasma as a connecting form between cirripedes and Rhizocephala.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 10 Oct 1865 |
Classmark: | Möller ed. 1915–21, 2: 74–6. |
Letter no: | DCP-LETT-4912A |
From Fritz Müller 5 November 1865
Summary
Thanks CD for the copy of Orchids and papers on Linum and Lythrum [Collected papers 2: 93–105; 106–31].
Intends to travel to the River Itajahy and will make observations on climbing plants. Is not sure whether Dalbergia is a winding plant.
CD has changed FM’s whole perception of nature.
CD has helped him to understand distribution of coastal flora.
The vegetation on Desterro is changing.
Louis Agassiz is seeking evidence against transmutation in the distribution of the fish in the Amazon.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 5 Nov 1865 |
Classmark: | Möller ed. 1915–21, 2: 76–7. |
Letter no: | DCP-LETT-4929A |
From Fritz Müller 13 February 1866
Summary
Thanks CD for Journal of researches.
Insect genus Elater is an exception to the rule that all luminous organs give out a green light.
Gives some observations on climbing plants at Itajahy.
His study of orchids has convinced him of the value of CD’s book.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 13 Feb 1866 |
Classmark: | Möller ed. 1915–21, 2: 79–80 |
Letter no: | DCP-LETT-5004A |
From Fritz Müller 6 March 1866
Summary
Thanks CD for German translation of Origin.
Droughts over the summers have brought about changes in the numbers of plants and animals in the area. The small quantity of Orchestia darwinii that has survived the changes no longer includes two previously common male forms. Great changes also take place without such unusual physical conditions. The disappearance of a briefly abundant bryozoan in local caves has made way not for the return of original bryozoan inhabitants but for a completely new fauna.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 6 Mar 1866 |
Classmark: | Möller ed. 1915–21, 2: 80–2 |
Letter no: | DCP-LETT-5027A |
From Fritz Müller 2 August 1866
Summary
Gives some observations on orchids and on some plants which seem to be dichogamous.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 2 Aug 1866 |
Classmark: | DAR 76: B33, 33a; DAR 157a: 81, 102; DAR 142: 38 |
Letter no: | DCP-LETT-5173 |
From Fritz Müller 1 and 3 October 1866
Summary
Discusses dimorphism of Oxalis; one form has 99% sterile anthers. Has found three kinds of fertile anthers.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 1 and 3 Oct 1866 |
Classmark: | DAR 142: 99; DAR 157a: 103 |
Letter no: | DCP-LETT-5226 |
From Fritz Müller [2 November 1866]
Summary
Sends his observations on sterility of Eschscholzia,
on Oxalis,
and on recently found dimorphic plants.
Sends specimen of Hedyotis [see Forms of flowers, p. 133].
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | [2 Nov 1866] |
Classmark: | DAR 111: B59, DAR 142: 100, 101, 105, Möller ed. 1915–21, 2: 93–4 |
Letter no: | DCP-LETT-5264 |
From Fritz Müller 1 December 1866
Summary
Gives observations on orchid ovules ripening long after blooming.
Infertility with own pollen sometimes does and sometimes does not indicate dimorphism; gives observations on Ximenia, Eschscholtzia and Oncidium flexuosum.
Describes some striking seeds eaten by birds,
and some new dimorphic species.
Variation in Thillia.
Confirms CD’s suspicion that the lancet-fish [Amphioxus] lives in competition with invertebrates: it shares its habitat with a similar-looking Ophelia, which is quite unlike other annelids, just as the lancet-fish is unlike other fishes.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 1 Dec 1866 |
Classmark: | Möller ed. 1915–21, 2: 99–102. |
Letter no: | DCP-LETT-5292A |
From Fritz Müller 1 January 1867
Summary
Describes his experiments in fertilising Oncidium flexuosum and comparison with Notylia.
Has been examining Catasetum.
Encloses seeds of two species of Gesneria and describes hairs in the seed capsule. Hairs in other plants seem to have a different function.
Starting tomorrow for a botanical excursion on the Continent.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 1 Jan 1867 |
Classmark: | Möller ed. 1915–21, 2: 104–9; DAR 157a: 104 |
Letter no: | DCP-LETT-5344A |
From Fritz Müller 2 February 1867
Summary
Thanks for CD’s letter inquiring about capsules produced by the Maxillaria with larger pods [see 5331]. Gives descriptions of Maxillaria and of the other Vandeae.
Describes Oncidium flexuosum.
Tells of botanical results of recent excursion to the German colony Theresopolis. Brought home fine collection of living orchids.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 2 Feb 1867 |
Classmark: | Möller ed. 1915–21, 2: 109–11; DAR 70: 146 |
Letter no: | DCP-LETT-5389A |
From Fritz Müller 4 March 1867
Summary
Reports observations on fertility of orchids he has self-pollinated and crossed with pollen of other species.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 4 Mar 1867 |
Classmark: | DAR 142: 102 |
Letter no: | DCP-LETT-5429 |
From Fritz Müller 1 April 1867
Summary
Cites cases of difference in coloration between the sexes of some species of Crustacea, annelids, and spiders.
Discusses dimorphic plants and self-sterility.
Outlines some experiments involving the crossing of different species of orchids.
Encloses extract from Carl Claus, Die freilebenden Copepoden [1863].
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 1 Apr 1867 |
Classmark: | DAR 110: B111–12; DAR 81: 167 |
Letter no: | DCP-LETT-5480 |
From Fritz Müller 2 June 1867
Summary
Discusses dimorphism in plants, especially the Rubiaceae.
Gives observations on orchids; notes varying degrees of self-sterility and a varying success at crossing distinct species.
Mentions local ferns he is collecting
and considers the phenomenon of apparently mimetic plants.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 2 June 1867 |
Classmark: | DAR 110: B113–14 |
Letter no: | DCP-LETT-5559 |
From Fritz Müller 17 July 1867
Summary
Thanks CD for sending F. H. G. Hildebrand’s book on fertilisation [Die Geschlechter-Vertheilung bei den Pflanzen (1867)]
and J. D. Hooker’s "Lecture on insular floras".
Describes work on Rubiaceae, Oxalis,
and on crossing orchids. Lists crosses made.
As for CD’s query concerning sexual differences among invertebrates, he gives the case of the local amphipod, Brachyscellus diversilor. Male differs in shape of antennae and coloration.
Also mentions local fish in sea near Sta Catharina which emits melodic tone to attract females.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 17 July 1867 |
Classmark: | Möller ed. 1915–21, 2: 130–1 |
Letter no: | DCP-LETT-5583A |
From Fritz Müller [8 October 1867]
Summary
Has CD ever considered that the colour of seeds of Amarantaceae would attract the attention of birds?
Describes case of a climbing Chamissoa of the local flora.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | [8 Oct 1867] |
Classmark: | Möller ed. 1915–21, 2: 132 |
Letter no: | DCP-LETT-5620A |
From Fritz Müller 3 April 1868
Summary
Thanks CD for sending him copy of Variation.
Describes results of his brother’s [August Müller] experiments on effect of climate on maize.
Like ancestors of horses, young tapir is also striped.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 3 Apr 1868 |
Classmark: | Möller ed. 1915–21, 2: 137–8 |
Letter no: | DCP-LETT-6089A |
From Fritz Müller 22 April 1868
Summary
His opinion of Pangenesis.
On relative proportion of sexes in marine animals [sthg missing!?] Crustacea.
Sexual differences.
Music of Cicadae.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 22 Apr 1868 |
Classmark: | DAR 86: A85–6; Möller 1915–21, 2: 140; Darwin Library–CUL (tipped into CD’s copy of F. Müller 1864a) |
Letter no: | DCP-LETT-6140 |
From Fritz Müller 17 June 1868
Summary
Again thanks CD for trouble in arranging for translation of Für Darwin.
Sends addition answering critics of his idea of insect metamorphosis [see Möller ed. 1915–21, 1: 259].
Agrees with Charles Lyell’s suggested English title "Facts and arguments in favor of Darwin", although perhaps more accurate to call it "Darwinism tested by Carcinology" or "Carcinology as bearing on the origin of species".
Says any profit should go to CD for his trouble and expense with the translation.
Thanks for seeds of Eschscholtzia.
Gives observations on number of climbing plants, including Dilleniacea, Marantacea, Catasetum.
Author: | Johann Friedrich Theodor (Fritz) Müller |
Addressee: | Charles Robert Darwin |
Date: | 17 June 1868 |
Classmark: | Möller ed. 1915–21, 2: 141–3; W. S. Dallas trans. 1869, pp. 119–21 n. |
Letter no: | DCP-LETT-6248A |