Will FD try to persuade A. D. Bartlett to show a live snake to a porcupine and observe whether the porcupine rattles the quills on its tail? [See 8333.]
Will FD try to persuade A. D. Bartlett to show a live snake to a porcupine and observe whether the porcupine rattles the quills on its tail? [See 8333.]
Sends drawings of dogs in different attitudes, drawn by his friend A. May. FD should not trouble CD unless he thinks the drawings will please him. [See Expression, pp. 54–5.]
Sends an account of an attempt to take a sphygmograph tracing of a woman during fright
and some references that might apply to CD’s work on pulse rates during rage and fright.
Sends to Pantlludw [North Wales] bottle of formic acid. FD and Amy [Darwin] can search for spawn. If found, keep in two basins and add 6 drops of acid to one and look for differences.
"Try only 1 or 2 drops of Formic A[cid]."
Fears all the seeds are dead. Will try with less vapour of formic acid.
Sends FD £5 for the loan of his microscope.
Observations on bees’ biting holes in Lathyrus.
Suggests an experiment FD could carry out with Drosera.
CD is working on Mimosa, and "everything has turned out as perversely as possible".
Pollination and floral structure of Lathyrus. Asks where bees bite through the flowers.
Asks FD to bring any book that gives the affinities of the various earths, alkalis and metals.
Asks for details about microscope parts.
Wants FD to ask Hooker for species of Desmodium; CD believes he has found new movements.
Also ask whether Hooker has Drosophyllum.
Lists observations he would like FD to make on the dried species of Desmodium at Kew.
Wants FD to look at the little lateral leaflets of Desmodium. CD has "a wild hypothesis that the little leaflets may be tendrils reconverted into leaflets".
Information about insects on Pinguicula leaves.
Asks for a specimen of Pinguicula.
Has been examining Utricularia minor. Same essential structure but catches smaller Entomostraca. One bladder had 24, another 20, and another 15 Entomostraca. "What slaughter! We must make out the functions of the beast––".
Asks FD to come early to write from dictation.
Thanks Amy for her drawing of Utricularia montana.
Begs FD’s pardon: his notes on Utricularia amethystina are on same page with those on U. nelumbifolia.
Sends a chapter [of Insectivorous plants]. Never was there anything so dull, but later chapters will be better. Please correct an error on p. 86.
Sends proofs of Variation [2d ed.] for FD to look over.