To J. de C. Sowerby   13 February [1851]

Down.

Feb. 13th

My dear Sir

Many thanks for all the care you wish to take. I enclose two boards with specimens— you will see the central ridge is very little larger than the other longitudinal striæ, & that there are no marginal lateral main ridges as in some other species.— I send also the Scutum.— Attend to the Section of the Carina.—1

It is unfortunate, but I observe that the figures which have given most trouble are those of which drawings were made!

With thanks | Yours sincerely | C. Darwin

P.S. When convenient you can let me know what I am indebted to you—

P.S. All the specimens can perhaps be put together in the present Box & sent to the Geological Society, informing me of them as soon as sent there.—

The references are to parts of Scalpellum arcuatum (Fossil Cirripedia (1851): Tab. I, fig. 7) to Sowerby’s engravings of which CD had requested alterations (see letter to J. de C. Sowerby, 10 February [1851]).

Manuscript Alterations and Comments

1.3 no] before omitted point
2.1 unfortunate,] before omitted comma
5.1 P.S. All … sent there— 5.2] pencil
5.1 perhaps] interl
5.1 in] over illeg

Please cite as “DCP-LETT-1389,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-1389