LJ has had a letter from R. T. Lowe in Madeira who thinks Scorpaena histrio, a species from Galapagos described in no. 1 [of Fish], is the same as the one in the Atlantic and Mediterranean. LJ does not think it is possible.

[Copy of some rough notes.] References about species. Variations within species.

Thanks CD for his contribution to the memoir of Henslow [L. Jenyns, Memoir of the Rev. John Stevens Henslow (1862)].

Sends proof-sheets of CD’s contribution to LJ’s Memoir of Henslow.

Pleased with CD’s opinion of the Henslow Memoir [L. Jenyns, Memoir of the Rev. John Stevens Henslow (1862)]

On polygamous birds and the pairing of birds. Late singing of males. [see Descent 2: 107.]

Sends his notes on Florent Prévost’s reference to the habits of the cuckoo.

Congratulates CD on testimonials from the savants of Germany and the Netherlands [Nature 15 (1877): 356, 410–12] and generally on his contributions to biology.

Asks if and when CD’s "Variability of organic beings in a state of nature", as projected in 1868 [see Variation 1: 4] is to appear.