To Francis Darwin 14 [August 1878]1
[Abinger Hall, Surrey.]
14th.
My dear F.
On my study table there are 2 old Boxes with seeds— Please get out packet of Oxalis Valdiviana (not the seeds in white paper from Kew, as they are all bad) O. rosea, O floribunda & O. corniculata (which latter Lettington has) & have one pot of each sown, for I want to trace movement of an old Cotyledon, after its growth has ceased if it ever does cease.—2 Also I want you to examine & compare carefully the pulvinuses of a species which raises & depresses its cotyledons greatly at night, & of O. corniculata which raises them only moderately.—3 I have, however, some in spirits of Wine which will now be beautifully white on shelf by microscope Table.—
I will write to day to Veitch for plant of Bignonia capreolata— read what I say about its Tendrils.— If any Tendrils are ready (& they are ready for Heliotropism before fully expanded). before we return try tips painted with Indian Ink.—4 I use the solution thickened by rubbing.—
I shall have to work you like a Horse when we come back.— De Vries comes here to day for 3 Hours—5 the Lord have mercy on me—
Goodbye dear old Backy C. D.
Footnotes
Bibliography
Climbing plants 2d ed.: The movements and habits of climbing plants. 2d edition. By Charles Darwin. London: John Murray. 1875.
Summary
Instructs FD to plant some Oxalis seeds.
Wishes to trace the movement of an old cotyledon. Asks him to examine and compare the pulvinus of a species which moves its cotyledon greatly with one of a species that moves it only moderately.
Are the tendrils ready for heliotropic experiment yet?
Letter details
- Letter no.
- DCP-LETT-11658
- From
- Charles Robert Darwin
- To
- Francis Darwin
- Sent from
- Abinger Hall
- Source of text
- DAR 211: 43
- Physical description
- ALS 2pp
Please cite as
Darwin Correspondence Project, “Letter no. 11658,” accessed on 20 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-11658.xml