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Darwin Correspondence Project

To J. de C. Sowerby   27 August [1850]

Down Farnborough Kent

Aug 27th

My dear Sir

I return P. rigidus.—

I send, also, I am sorry to say two new species to be figured;1 they are minute & are wrapped up in silver paper at top of Box.

Scalpellum tuberculatum will have to be introduced after S. arcuatum.: and Pollicipes semilatus after P. striatus.— The instructions herewith sent are, I think quite sufficient.

Pray observe how time slips by.— Remember that before the Plates are all engraved, I must have drawings for the woodcuts, as these come in Introduction.—2

I hope that these new figures will not cause you much trouble in altering arrangement.3

Yours sincerely | C. Darwin


Scalpellum tuberculatum and Pollicipes semilatus. The two new species were from the specimens sent by William Harris. See letter to William Harris, 6 August [1850].
Three woodcuts showing the valves of Cirripedia and their names are printed in the introduction, Fossil Cirripedia (1851): 9.
J. de C. Sowerby had submitted a ‘scheme of plates’ for CD’s monograph to the council of the Palaeontographical Society. It was approved on 28 June 1850 (Palaeontographical Society Minute Book, British Museum (Natural History)).


Fossil Cirripedia (1851): A monograph on the fossil Lepadidæ, or, pedunculated cirripedes of Great Britain. By Charles Darwin. London: Palaeontographical Society. 1851.


Returns one figure and sends two minute new species to be figured [for Fossil Cirripedia (Lepadidae)]. "Pray observe how time slips by."

Letter details

Letter no.
Charles Robert Darwin
James de Carle Sowerby
Sent from
Source of text
American Philosophical Society (Mss.B.D25.)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 1347,” accessed on 24 June 2021,

Also published in The Correspondence of Charles Darwin, vol. 4