Agrees that in a deaf person the jaw may fall because of concentrated attention.

In surprise, mouth is opened suddenly and chest filled with air. This expression occurs in all parts of the world. Odd that so simple a movement is so perplexing to understand.

Second "edition" [of Descent] published this day. Offers CD 800 guineas.

Mentions Wallace’s review in Academy.

Comments on Descent [2: 358–60] especially on CD’s view that behaviour of lower animals is evidence against JL’s interpretation [of aboriginal promiscuity]. View on communal marriage.

Having read extracts of CD’s work, he argues that the scriptural version of man’s origin is superior, and he is concerned about CD’s salvation.

Describes plans for travel in Morocco with George Maw and John Ball.

Has not yet read Descent.

Is studying Descent.

Raises two questions for CD: on the great percentage of female illegitimate births compared with legitimate,

and on clothing as accounting for hairlessness of humans.

Demand [for Descent] is such that JM thinks he will have to print 1000 more copies. Does not want to trouble CD for corrections.

Asks name of an Abutilon from Fritz Müller.

Questions about Drosophyllum for experiments;

the meaning of "Sirdar".

Wonderful success of Descent. Astonished by liberality of public. No abuse yet.

Marvels at JDH’s plans for a trip to Morocco. Asks him to look for alpine insects.

Completes payment for 2d issue [of Descent]; has sold 1300 of the 2000 copies printed. Will probably print 2000 more for 3d issue.

Asks for photograph of pointed ear of ERL’s friend.

On the case of a male acquaintance with two pairs of mammae.

Unfortunately he has missed an opportunity to review Descent in Nature.

Asks WO to act out the sudden discovery of a dreadful object and to observe whether his platysma contracts. CD has found in his notes that it is never contracted in cases of severe dyspnoea [Expression, p. 301].

Gives CD permission to use photographs of expressions.

Thanks for £50 contribution to Edward Cresy’s memorial. £1000 collected so far for an annuity for Mrs Cresy.

If FD gets the chance, will he observe whether the platysma contracts in a shivering fit? Wants much to know whether the platysma of frightened patients contracts before chloroform is given.

Answers CD’s questions.

Reception of Descent. Evolution accepted everywhere; descent of man accepted calmly.

Morocco plans.

Fears for Huxley, who is overworked.

Thanks for CD’s letter on his review of Descent in the Pall Mall Gazette [21 Mar 1871].

Wants permission to have some of AK’s photographs copied for Expression.

Sends Hibiscus

and enclosure [Queries about expression?] on chance of "any point being observed" in Morocco.

Murray informs him edition of Descent will probably be 6500 copies.