Darwin’s MS, volume 64.2
This volume contains materials for Earthworms and drafts of various works. When I transcribed the volumes of 63-65 in 2021, I had omitted the back pages of the worm notes which are drafts of Cross and self-fertilisation. They are now transcribed here. Corrections welcomed. Where a title is absent on the MS, the best description is adopted. Click on the classmark (DAR) for image view in Cambridge University Library archive or Darwin Online.
Citation: Darwin, C. R. Undated. Tropæolum. DAR64.2.15v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[folio] 277
Tropæolum
Sprengel and Delpino. Twelve flowers on some plants growing out of doors were crossed with pollen from a distinct plant, and produced eleven capsules containing altogether 24 good seeds. Eighteen flowers were fertilised with pollen from the same flower and produced only eleven capsules, containing 22 good seeds. So that a much larger proportion of the crossed than of the self-fertilised flowers produced capsules, and the crossed capsules contained rather more seed than the self-fertilised [the proportion] ratio of 100 to [illeg]. The [text excised]
[Note: Draft is copied by Ebenezer Norman. The text of this manuscript corresponds to Cross and self fertilisation, p. 144.]
Citation: Darwin, C. R. Undated. H. Müller has also seen the hive-bee at work. DAR64.2.23v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[1]
= deners’ Chronicle. 1844 p. 374) of bees doing so. H. Müller has also seen the hive-bee at work, but only on the wild small-flowered form. He gives a list (Nature 1873 p. 45) of all the insects which he has seen visiting both the large and small-flowered forms. From his account, I suspect that the flowers of plants in a state of nature are visited more frequently than those of the cultivated varieties in gardens. Thus He has seen several butterflies sucking the flowers of wild plants, and this I have never observed in gardens, though I have watched the flowers during many years.
[Note: Draft is copied by Ebenezer Norman. The text of this manuscript corresponds to Cross and self fertilisation, p. 124.]
Citation: Darwin, C. R. Undated. Ononisminutissma. DAR64.2.27v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[1]
a cross─ Ononisminutissma, cleistogene flo[wers]
Summary on the Leguminosæ─ Clarkia [elegans.]
Bartonia aurea.—Passiflora gracilis.—Ap[ium petros]
elinum.—Scabiosa atropurpurea.—Lac[tuca sativa.—]
Specularia speculum.—Lobelia ramosa, [advantages]
of a cross during two generations.—Lobelia f[ulgens.—]
Nemophila insignis, great advantages of a [cross.—]
Borago officinalis.—Nolana prostrata.
[Notes:
- The top half is at CUL-DAR64.2.91v
- The text of this manuscript corresponds to Cross and self fertilisation, p. v.]
Citation: Darwin, C. R. Undated. [Natural selections?] DAR64.2.28v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[folio] 10
lers. No explanation whatsoever is offered, as it seems to me, of the innumerable cases of exquisite and wonderful co-adaptation of organic being one to another;─ for instance in the often quoted case of the woodpecker, in which the feet and tail are formed to climb trees, the beak like a wedge to peck into the bark, and the wonderful tongue to secure the hidden insects;─ or again with the misseltoe adapted to grow on certain trees and rob their sap, with their berries adapted to be carried by certain birds, and with their unisexual flowers, absolutely requiring certain insects to transport their pollen. I do not believe a single animal exists without having manifest correlations to other organic beings. How are these facts to be explained? It seems futile to attribute quite impossible to explain them by the effects of changed external conditions, as of greater or less heat and light or of moisture and other such contingencies. I state that often many generations some plant gave birth to the misseltoe, with its threefold relation, appears to me to throw no more light on the problem, than to state simply that the misseltoe was
[Note: Draft is copied by Ebenezer Norman with corrections by Darwin.]
Citation: Darwin, C. R. Undated. self-fertilised capsules were however the heavier. DAR64.2.31v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[1]
self-fertilised capsules were however the heavier in the proportion ratio of 100 to 87.
Three or four pairs of these two lots of Seeds in an equal state of germination were planted on the opposite sides of four pots: but only the two tallest plants on each side of each pot were measured to the tops of their stems. The pots were placed in the greenhouse, and the plants trained up sticks, so that they ascended to an unusual height. In three
[Note: Draft is copied by Ebenezer Norman with corrections by Darwin. The text of this manuscript corresponds to Cross and self fertilisation, p. 99.]
Citation: Darwin, C. R. Undated. in flower on the following spring. DAR64.2.88v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[1]
in flower on the following spring were nine inches in height; one of the self-fertilised plants was eight, and the three others only 3 inches in height, so that they were being thus mere dwarfs. The two crossed plants produced 13 pods, (& four of them, however, the product of a cross between the two plants) whilst the four self-fertilised plants produced only a single pod one. Some other self-fertilised plants which had been grown raised separately in larger pots produced under a net several spontaneously
[Note: Draft is copied by Ebenezer Norman with corrections by Darwin. The text of this manuscript corresponds to Cross and self fertilisation, p. 147.]
Citation: Darwin, C. R. & Francis Darwin. Undated. Geramiaceæ, Leguminosa, Onagraceæ &c. DAR64.2.91v
Transcribed and edited by: Christine Chua (08.2023)
Transcript:
[folio] 273
Chapter V
Geramiaceæ, Leguminosa, Onagraceæ &c.
Pelargonium zonale, a cross between plants propagated by cuttings does no good.—Tropaeolum minus.—Limnanthes douglasii.—Lupinus luteus and pilosus.—Phaseolus multiflorus and vulgaris.—Lathyrus odoratus, varieties of never naturally intercross in England.—Pisum sativum, varieties of rarely intercross, but a cross between them highly beneficial.—Sarothamnus scoparius, wonderful effects of
[Note: The bottom half is at CUL-DAR64.2.27v. The text of this manuscript corresponds to Cross and self fertilisation, p. v.]