New specimens have shown CD he has two distinct species under one name [in Fossil Cirripedia (Lepadidae)]. He adds new figures and suggests deletions. Will come to London when he has proofs.

CD has two corrections in spelling on woodcut [for Fossil Cirripedia (Lepadidae)]. Has asked J. S. Bowerbank who should cut the blocks and suggested JdeCS get it done. Repeats arrangements to compare specimens and proofs in London.

Thanks for fossil cirripede specimens.

Describes progress on his book [Fossil Cirripedia] and his work on living cirripedes. Asks to borrow specimens.

Comments on book [F. C. L. Koch and Wilhelm Dunker, Norddeutschen Oolithgebildes (1837)].

Sends thanks to Friedrich Adolph Roemer and R. A. Philippi for specimens.

Plans to come to London to examine the proofs of JdeCS’s plates [for Fossil Cirripedia (Lepadidae)]. Has new German specimens; one is unknown and must be introduced but a woodblock will do.

"Resolved that the Secretary be requested to ask Mr. Darwin if he would agree to the publication of his work [Living Cirripedia] in parts."

Is concerned about the education of his boys and is undecided between Rugby and Bruce Castle schools; is inclined toward the latter, but afraid to experiment on so important a subject.

Reports on his pear-trees.

Thanks AS for a copy of his book, Discourse [on the studies of the University, 5th ed.].

Thinking of not sending his eldest son [William] to a classical school.

CD will write again when he returns to Down and has looked over his MS.

MS [of Living Cirripedia, vol. 1] can be ready in two weeks, but CD would like a decision from the Council of the Ray Society on number of plates. Thinks specimen should be sent to G. B. Sowerby Jr for an estimate on price of engraving. Regrets he is not familiar with routine of the Society. Systematic section will be in two parts; the third part will be on anatomy, habits, etc.

Explains that fossil cirripede specimens have not been returned because J. de C. Sowerby has been monstrously delayed with the engravings. Members of Palaeontographical Society have urged Sowerby to complete task.

In response to CD’s letter [see 1364] the Secretary is instructed to request that he send a specimen plate to James de Carle Sowerby for estimate of cost.

Has sent G. B. Sowerby Jr some skeleton plates [for vol. 1 of Living Cirripedia] which the Council [of the Ray Society] may also wish to see, along with GBS’s finished drawings. He reminds EL that he has not heard about colour for the plates and adds he has not been told what type should be used; gives estimated lengths of part 1 in different sizes of type (part 2 will be fully twice the size of this). Hopes if the Council does not publish part 1 in 1851 it will publish all in 1852.

Describes progress in illustrating fossil cirripede specimens by J. de C. Sowerby.

CD likes the engravings [for Fossil Cirripedia (Lepadidae)] but is distressed by JdeCS’s slow progress and is being pressed by owners to return their specimens.

Thanks SC for box of specimens [of cirripedes].

Often wishes he had settled in one of the colonies because of opportunities for his children.

Falconer’s misbehaviour.

Geology of Khashia [Khasi] mountains. Speculations on mountain building and origin of Himalayas.

Inquires about financial matters.

No summary available.

Describes progress of J. de C. Sowerby in engraving fossil cirripede specimens.

Discusses share dealings and investment matters.