CD makes progress with barnacles. Describes "supplemental" males in detail. In working out metamorphosis, their crustacean homologies followed automatically.

CD opposes appending first describer’s name to specific name.

Thanks for note and enclosure. Has written to [David?] Landsborough to say dried specimen was just what he wanted. Would like some more in spirits.

Very unwell.

Thanks LA and sends thanks to A. A. Gould for specimens. Describes principal findings of his research on cirripedes. Is obliged for information Joseph Leidy gave about cirripede eyes. Describes anatomical features and chief aspects of growth. Describes discovery of parasitic males and a species parasitic upon other cirripedes.

CD fears he must wear Emma with his unwellness and complaints.

Returns letters [from her son, J. D. Hooker, in India].

Asks that B. H. Hodgson’s zoological pamphlets be sent to him at Athenaeum.

Obliged for drawings and coins. Cannot tell what the stone is.

Discusses his account. Mentions death of his father and his own inheritance.

Thanks JWL for the use of a schoolroom.

Arranges to meet JWL’s son [John] to discuss use of microscope.

Mentions illness.

Thanks JWL for his paper ["Shooting stars", London Edinburgh & Dublin Philos. Mag. 32 (1848): 81–8, 170–2; 35 (1849): 356–7].

Testimonial recommending B. Waterhouse Hawkins [for a teaching post].

Obliged for account of change in quality of wool. "Some authors will not admit that climate has any perceptible action."

Hopes his health is re-established.

Agrees that naval expeditions to the Arctic are a waste of money. Believes Sir J. Barrow responsible. "Dr [Richard?] King is quite right in the advantage of Land Expeditions".

Thanks for note.

Glad DS sticks to cleavage and foliation question. Bernhard Studer one of few to take correct view on subject.

Pleased at RO’s praise of Coral reefs.

Has read with very great interest RO’s "Report on the archetype" [Rep. BAAS 16 (1846): 169–340]. RO should give name to every letter or number in his woodcuts.

As JH has accepted the superintendency of the Admiralty Manual he will try to undertake the geological part, but it will take time as he is busy on another project.

As JH is interested in colors he sends him details of the color changes that the genus Ibla undergoes. Will send him a specimen if desired.

Encloses samples of the Ibla. Outlines the method of making it change color. Hopes he will not have to re-write his geological chapter for the Admiralty Manual.

Has forwarded JH's note to Robert Mallet, who no doubt will compress his part. Encloses his own part,which he fears may be too long. Would like a chance to see the proofs. When completed would like several copies.

Sends his manuscript. P.O. has been unable to trace the missing parcel. Comments on J. B. Elie de Beaumont's method of measuring lava streams; emphasizes the importance of repeated observations. Would like copies of the manual when completed.

Ask JR to advise the Queen to issue Her Royal Commission of Inquiry into the best methods of securing the improvement of the Universities of Oxford and Cambridge.