Summary

Encloses a letter to be forwarded to Sven Lovén, asking for a specimen of a remarkable cirripede. Still anxious to receive JGF’s specimens.

Summary

Appreciates what Murray and the printer are doing to rectify the error [transposition of pages of text in "Geology"]. But if the responsible person will be fined heavily, CD would want to "make some present".

Summary

J. B. Innes is greatly obliged for JSH’s letter. JSH’s observation of chalk flints strikes CD as "very curious".

Summary

Thanks MATW for the results of her experiments on the inheritance of caterpillar peculiarities and would be grateful for any further observations on differences in structure or habits between silkworm breeds, or peculiarities in inheritance.

Summary

Describes his research on cirripedes: an "anatomical and systematic catalogue". Asks to borrow specimens.

Summary

Asks if Mr Salt could arrange to invest up to £30,000 on his behalf.

Summary

To make his monograph on cirripedes complete, would appreciate a specimen of Alepas squalicola, which CD is sure is a new genus.

Summary

CD thinks great dam across Yangma valley is a lateral glacial moraine.

Reports on Birmingham BAAS meeting.

Details of water-cure.

Barnacles becoming tedious; careful description shows slight differences constitute varieties, not species.

Lamination of gneiss.

Summary

Sends detailed report on the prospects for a settlement on the coast of Patagonia, pointing out many problems, and recommending instead the Falkland Islands.

Summary

Discusses CL’s Second visit to the United States [1849]. Corrects CL’s error regarding location of Megatherium finds.

Summary

He is willing to wait until the end of February 1850 for Mr Salt to find him an opportunity to invest up to £30,000.

Summary

Pleasure at receiving CD’s scientific letters to JDH and Hodgson.

The H. Wedgwoods’ pecuniary loss.

Condolences at CD’s father’s death.

Rajah harasses JDH’s work. Lack of supplies, rain, malarial valleys, and landslips make going difficult. Cannot get into Tibet.

"Twenty species [of plants] here [Camp Sikkim] to one there [Tierra del Fuego?] always are asking me the vexed question, ""where do we come from?""."

From observation of terraces descending to steppes and plains of India, he thinks that the Himalayas were once a grand fiord coast.

Has information CD requested on Yangsma valley. JDH’s detailed hypothesis of origin of dam there. Does not agree with CD’s interpretation.

Summary

Discusses cirripedes collected by JDD.

Gratified that he agrees "to some extent" with CD’s views on coral reefs.

Mentions his health.

Asks for JDD’s publication on cirripedes.

Sends message from William Baird concerning Crustacea research of J. O. Westwood.

Mentions Joseph Leidy’s discovery of cirripede eyes.

Summary

Continues prior letter of this date. Has received CD’s [1202]. Thanks CD for saving his correspondence.

Sent "a yarn about species" in October mail.

Some "puerile" JDH letters printed in Athenæum.

Requests CD extract anything valuable from his letters to CD and Lyell for Athenæum.

CD’s complemental males in barnacles wonderful.

Warns CD to drop his battle about perpetuity of names in species descriptions.

Summary

Has had his portrait taken;

is anxious about scarlet fever among his children.

Summary

Discusses effect of subsidence and elevation on deposits. Cites examples along coasts of South America and Wales. Proposes theory to explain thickness of deposits in south Wales.

Asks CL’s opinion of his theory of "craters of elevation" described in Volcanic islands.

Mentions CL’s comparison of Mississippi beds to the Pampas.

Comments on Poulett Scrope’s views on the separation of basalt and trachyte.

Describes his cirripede work.

Summary

Inquires about parcel of cirripede specimens lost in transit. Asks him to tell Steenstrup about the loss.

Summary

Asks MEL to translate page of paper by Sven Lovén ["Ny art af Cirripedia", Ofvers. K. Vetensk. Acad. Forh. Stockholm 1 (1844): 192–4]. CD is "dreadfully interested" in the barnacles [Alepas squalicola] described.

Hopes Charles Lyell’s "craters of Denudation" prosper.

Summary

Thanks JSH for information and suggestions on benefit clubs,

and for a shipment of fossil cirripedes.

Summary

CD is distressed that JS’s shipment of fossils has been lost: "of all the Cirripedes in the world, I most wish to dissect the Alepas squalicola". Welcomes JS’s offer to send some northern recent species. CD finds great confusion in the current classification of cirripedes in British museums; different genera are made into one species, mere varieties are made into distinct species. If JS would give him some named common northern species, it would be of great assistance.