Comments on his examination of slides [of milk casein?] sent by CD.

Surprised by CD’s finding that a drop of one per cent hydrochloric acid stops digestion of albumen by Drosera.

Descent [2d English ed.] will not be published until November. Will send JVC first sheet of revised proofs soon.

Pleased to hear of success of JVC’s lectures.

Summer plans have changed. Does not yet know when he will take a month’s holiday.

Sends his paper ["On secondary sexual characters in the Cheiroptera", Proc. Zool. Soc. Lond. (1873): 241–52]

and some of his observations of the gecko, which appear to contradict CD’s opinion.

"With kind regards, & many thanks for Prof. Steenstrup’s Photograph, which is most highly valued by C. Darwin"

No summary available.

Sends CD photograph of a "natural curiosity", a bear apparently "painted" with red iron on the face of a soft rock; has also sent copies to a few U. S. scientists.

CD responds to information about residue of milk digested by Drosera. Is obliged for information on strength of acids and albumen and now has little doubt acid had impaired the leaves. Awaits word on pepsin and papaw juice.

Thanks for note and paper ["Secondary sexual characters in Cheiroptera", Proc. Zool. Soc. Lond. (1873): 241–52].

Has corrected error in new edition of Descent [1874].

Sees nothing strange in geckos inhabiting frost-clad land and having no claws.

Regret at reading of Huxley’s death [a false report].

No summary available.

Sends CD provisional information that artificial gastric juice dissolves bone entirely and that gluten and fibrin are completely dissolved in hydrochloric, propionic, and butyric acids. [See Insectivorous plants, pp. 118–19.]

No summary available.

There is no uniform edition of CD’s work.

Thanks JSBS for his work. CD concludes the ferment of Drosera must differ from pepsin.

D. A. Spalding has asked for information to help with his experiments on sense of direction in animals. Has arrived at same results as GHD with blindfolded children. Will GHD let him have his results?

CD has forwarded proofs of Descent [2d edition]. Urges GHD not to work on them if his poor health makes them too tiring.

Thanks GHD about Spalding [i.e., for responding to Spalding’s request, see 9472].

No summary available.

Intends to keep working on [Descent, 2d ed.] proofs despite his illness.

Thanks GdeS for his "Études sur la végétation" [Ann. Sci. Nat. (Bot.) 5th ser. 15 (1872): 277–315]. "Nothing can be more important … than your evidence of the extremely slow and gradual manner in which specific forms change."

Hopes GdeS will shed light on whether polymorphic forms like Rubus and Hieracium are generating new species at present; CD doubts this.

Comments on CL’s planned bequest to science. CD would do the same if he had fewer sons.