Thanks for 5th volume of the West Riding Asylum Medical Reports.

Asks JC-B to return copy of Duchenne [Mécanisme de la physionomie humaine (1862)] and sends some notes "as your former notes were of such extreme interest to me".

JC-B’s essays are the fullest CD has received. His observations on blushing closely agree with James Paget’s. Platysma and horror: Duchenne’s statement doubtful.

Copy of Duchenne [see 7089] has not arrived; CD is concerned that it may be lost.

Duchenne [Mécanisme] has arrived. Has been testing the photographs with 20 or 30 persons; when all or nearly all agree with Duchenne, CD trusts him. Not one understood the "contracted pyramidal of the nose". CD does not think the so-called muscle of lasciviousness worth exhibiting.

His MS [of Descent] is so large he may print only what he has, and make a second volume of what he is now writing on expression.

Discusses photographs he would like to have: baby screaming, person in paroxysm of fear.

Will send copy of Descent.

Comments on JC-B’s MS on expression among insane. Asks about weeping in insane men. Do idiots laugh when pleased?

Thanks for photographs of insane. Asks for additional photographs.

Comments on Henry Maudsley [Body and mind (1870)].

Pointed ears in the insane.

JC-B’s MS most useful.

P. Gratiolet’s observations on contraction and dilation of pupils of eye of a person in extreme terror. Has JC-B ever observed this? Expression has been his hobby-horse for 30 years.

Asks whether capillary circulation is ever influenced by the mind’s being directed intently to any part of the body.

Has JC-B ever seen idiots blush? JC-B’s MS on blushing is capital.

Thanks for information about blushing of idiots.

Case of pregnant woman "truly wonderful".

Thanks for photographs.

Has found London photographer, O. G. Rejlander, with passion for photographing expression.

Received information about iris of eye from F. C. Donders; shows contraction and dilation of pupil is very complex.

Asks JC-B to read CD’s MS on confusion of mind, which often or generally accompanies blushing.

Discusses blushing. CD believes confusion of mind alone can account for it. Sends MS for JC-B’s comments and corrections.

Comments on notes by JC-B on relation between blushing and mental disturbance. Asks for further information about blushing. "The single pencil line down this MS is my mark that I have used it once."

Thanks for "dreadful photo of the imbeciles".

Asks JC-B to observe whether platysma muscle contracts during rigor or shivering fit.

Is just recommencing his essay on expression.

Has sent photographs of insane woman to be engraved. Assumes JC-B has no objection.

Is making immense use of JC-B’s MS. The book ought to be described as "by Darwin & Browne".

Hopes JC-B thinks that CD has properly acknowledged his debt in Expression.

Pleased that JC-B will review Expression.

Fears he will not be able to improve the book with JC-B’s "wonderfully curious" photographs because Murray printed such a large edition.

Would be glad to have JC-B’s notes on inheritance – "a most important subject".

Photographs sent by JC-B show great power of acting.

David Ferrier’s researches sound wonderful. Does he believe that he excites an idea and this leads to the movement, or that he acts directly on the motor nerves?

Thanks JC-B for volume of Asylum reports and paper on epilepsy. Seems clear from reports that physiology of brain will soon be largely understood.

Will do what he can to help JC-B with his work on expression of patients suffering from general paralysis.

Requests help for George Darwin’s investigation of marriages of first cousins. Seeks to determine proportion of first-cousin offspring among the insane, deaf and dumb, blind, etc.