Summary

JP’s note [8739] suggests reversion, but that is an easy trap. Will look to the ears of "our brethren at the Zool. Gardens".

Summary

Asks to have observations made of a person retching violently, but ejecting nothing from stomach, in order to test relation between spasmodic contraction of orbicular muscles and tears. CD believes tears are caused by matter filling nostrils.

Summary

Is honoured by, and accepts JP’s invitation for 3 August.

Summary

Perhaps you would like to see a very small “tumour” on a lateral branch of the Silver Fur, caused by an Œstrum, as stated (with references) in my Power of Movement in Plants. These tumours are sometimes almost as big as a child’s head. At what age they emit the upright shoot, I do not know.

Summary

Asks JP to remember him if anything occurs to him "in regard to inheritance at corresponding or rather earlier ages". Sends JP a few examples for his "Chronometry of life". CD is sure he often met with striking facts but he disregarded them. "Deviations alone would have struck me."

Effects of different climates on breeding periods.

Summary

Has heard from Ashwin Conway Newman of Guy’s Hospital of a case of a child without any prepuce whose father was a renegade, uncircumcised Jew, but whose ancestors had all been Jews. Newman thinks this a good case of inheritance with reversion. JP’s letter [missing] now shows how rash such a conclusion would be.

Summary

Sends a sentence, quoting JP, on inherited peculiarities in eye-brows. Asks whether he may use it in his chapter on inheritance [Variation, ch. 12].

Summary

Is delighted with JP’s article on vivisection ["Vivisection: its pains and its uses, No. 1", Nineteenth Century 10 (1881): 920–30]. CD is "boiling over with indignation on the subject".

Summary

Surprising thought that diseases of plants should illustrate human pathology.

Will recommend A. B. Frank’s article in a German encyclopedia, on diseases of plants, to Francis Darwin.

Gives JP a good case of regeneration in plants – the radicle of the common bean. That plants have little power of regeneration is not difficult to understand by anyone who believes in Pangenesis, "if such a man exists … There is reason to think that my imaginary gemmules have small power of passing from cell to cell."

Refers to early experiments in which he tried to produce galls in plants by injecting poisons.

Summary

Returns an "old book" [? Baeta, Comparative view of the theories and practice of Drs Cullen, Brown and Darwin (1800); see Erasmus Darwin, p. 107]. Glad to see that Dr Erasmus Darwin’s views on fever were attended to.

Fears his life of Dr Darwin will be a poor affair. "Never again will I be tempted out of my proper work."

Summary

Has made a wonderful recovery [from riding accident].

Asks for information on blushing and screaming [for Expression].