Corroborates and offers explanation of fact that male ghost-moths (Hepialis humuli) closely resemble females. [See Descent 1: 402.]

Is reading Descent.

Encloses some answers to CD’s queries about expressions of Laura Bridgman.

Sends German edition of Descent, vol. 1. Expects good sale. Hopes CD will offer him additional books to publish.

Objects to the negative reviews of Descent, notably in the Athenæum and the Times.

The exceptions are the Academy, Nature, and his own, in the Field [37 (1871): 210].

Is sending notes on blushing. Offers information on physiology and pathology of blushing.

Has sent photograph of seven imbeciles in one family.

Raises two points on CD’s view, in Descent [2: 229], on how aquatic birds acquire white plumage.

Also remarks on effect of will in certain human modifications,

on colour-blindness in his children,

and on ability to move his ears.

Gratified that CD approves his analysis of CD’s views of moral sense. Does not think there is a fundamental difference between J. S. Mill (Utilitarianism [1863], p. 45) and CD.

His view of those who object to CD’s "new doctrine of the moral sense".

Man’s spiritual life separates him from other animals.

Why are moths attracted, often fatally, to lights?

Thanks for copy of Descent.

Has had Hinrich Nitsche’s pointed ear photographed. Nitsche also has photographed the ear of a foetal orang. [See Descent 1: 21–3.]

On Hottentots’ blushing.

Gives case of a baboon’s revenge. [See Descent, 2d ed. (1874), p. 69.]

Comments on Descent.

Reports a case of protective coloration of bugs on Tilia

and observations on frogs fighting [see Descent, 2d ed., pp. 281, 350].

Encloses drawings of chicken feet.

Believes his letter of 17 Apr bears also on vol. 1 of Descent.

Ability to move ears is common in his family.

Similarity of foot of man to that of gorilla continues beyond foetal stage.

Invites CD to stay overnight if visiting the area.

Sends CD photographs of his atavistic ears and ears of a foetal orang in the collection of the Zoological Museum, Leipzig.

Movement of hair; action of occipito-frontalis muscle.

Thanks for contribution to fund for his brother’s widow.

Thanks CD for thinking of his speculation.

Has made a note of the paper mentioned by CD.

Anecdote of bear reasoning [see Descent, 2d ed., p. 76].

Similarity of forms of ornamentation and implements in widely separate races and ages [Descent 1: 233].

Replies to CD’s letter;

inquires about CD’s intended terms for Italian translator of Descent; hopes to offer best terms herself.

On reception of Descent in Edinburgh.

Anecdote about a dog helping another by separating combatants.

On ratios of the sexes in insects, and other facts relating to sexual selection.