Reports extract of spurge [Euphorbia] killing earthworms.
Reports extract of spurge [Euphorbia] killing earthworms.
Financial matters; executing EAD’s will; pleased to hear news about Prof. Challis.
Thanks for Earthworms.
Glad CD liked the Dischidia drawing. GK wishes he could see it in the wild to study its habits and those of the insects that visit it.
Asks for a testimonial for the Chair of Natural History at Edinburgh.
The statues on which the egg-cases were found were perfectly clean and had never been painted.
Reports on fossilised leaf-prints he has found on the island. Found no seeds or land shells at the site.
Must refuse WCM’s request to revise E. Ray Lankester's testimonial.
CD asks him to say that the beautiful specimens of Dischidia arrived safely.
Has read Earthworms; would like to know if his friend’s belief is true that worms, if not destroyed, eat the tender rootlets of grass.
Thinks William Thomson will support him [for Plumian Professorship at Cambridge].
Writes to ask how much he should subscribe to fund for David Ferrier.
Hopes WPS may succeed with a new edition of his book [see 13495]. WPS saw so much more of the natives of Tierra del Fuego than did CD and his opinion of them is probably right.
Discourages him from visiting.
Rows of cells with granular matter following treatment with carbonate of ammonia also found in white and young rootlets of common zonal Pelargonium. Differs slightly from Euphorbia in that 2, 3, 4, or 5 rows often adjoin. CD wrong in supposing that these rows of cells were connected with lacticiferous ducts ("milk-tubes"). Root hairs arise exclusively from rows of cells without brownish granular matter. It appears that certain rows of cells with hairs are absorbent and store matter of some kind. This is a new view of the structure and function of rootlets. Francis Darwin will soon set up the salt solution to make the experiment SHV recommends.
Discusses milk ducts in Euphorbia [spurge].
Sends copies of Variation, Descent, and Journal of researches from "the library of my late brother".
Thanks him for magnificent work on Pycnogonida [The zoology of the voyage of H. M. S. Challenger, vol. 3, part 10 (1881)].
Is delighted that he is undertaking the Cirripedia [1883–4].
At Mrs Lyell’s request, passes on a spare copy of K. M. Lyell ed. 1881.
Reports observing two wheat flowers that bent towards each other and pressed together in a "quick throbbing motion".
Will observe the granular cells in roots, to investigate CD’s observation that root-hairs spring from cells that are not granular. Hopes they may be soluble in [carbonate of ammonia] solution.
Concerning French translation of Earthworms
and Movement in plants.
Last issue of Nature has made him "awfully proud". [See R. S. Ball, "A glimpse through the corridors of time", Nature 25 (1881): 79–82.]