Is searching for a Robert Georg Twaddel; asks JH whether he knows anything of him.

Has received JH's letter from Gassiot and submitted it to the committee dealing with members of the Philosophical Club.

Points out an error in the instructions for magnetic observers provided for the Antarctic expedition.

Francis Beaufort has shown him his copy of the 'Requiem' and would be pleased if JH would send him a copy. Mr. Harvey and himself have been observing nebulae on the clear nights. Is having a Munich object glass mounted. Will be in town towards the end of the month.

Wishes JH would lay hands on the memorandum concerning the Zenith observatory on Etna. Explains why JH's theories regarding a point in gunnery do not work in actual practice. Queries the measurement given by JH for the height of Etna.

Regarding the correct figure for the height of Etna, W. H. Smyth favors the half foot measurement. Regarding falls of stones from Vesuvius. Encloses calculations made by professor at Naval College. Remembers large balls of lava at Teneriffe.

Was not certain how to reply to his last obliging letter. Has resolved to write to Professor [J. P.?] Müller. Thought it right to inform JH of his plans.

Sending a second edition of his letter to the President-elect of the R.S.L. Ten years ago he wrote to JH on this subject. Thinks the R.S.L. has its duties as well as its rights.

Details regarding the Admiralty Manual of Instruction. Number of copies and compensation for JH.

The Manual appears to have lost time. Outlines the general form to be taken, but leaves the details to JH. Size might be related to Alexander von Humboldt's Kosmos volume. Returns to the Admiralty next week.

Acknowledges the receipt of his letter, together with the preface and list of contents for the Admiralty Manual. Comments on this. Will arrange for copies to be sent to those designated. Admiralty is grateful for JH's work on the manual.

Comments on JH's estimate for the number of pages for the Admiralty Manual. Auckland [George Eden] does not mind the manual being enlarged should JH think it necessary.

Regarding an appendix to W. J. Hooker's article for the Admiralty Manual by [Augustin] Creuze if it is not already covered by Hooker.

George Eden (1st Earl of Auckland) concurs in JH's view that [Augustin] Creuze's letter should form an appendix to the article by W. J. Hooker.

Accompanying packet has just arrived from [Richard?] Owen. Appears that it will make the Admiralty Manual larger. Would like JH's views.

Forwards William Burnett's paper on medicine and medical statistics for the Manual. It exceeds the desired length but JH may prune it as he thinks fit.

Has just received the enclosed communication from Sir Hilgrove Turner, lately Governor of Bermuda. Believes JH is the only person who can deal with it.

Owing to ill health has had to quit H.M. service at the Cape and has been residing with his brother. Intends applying for the position of curator of the herbarium at Trinity College, Dublin, and would welcome a testimonial from JH. Sending this letter c/o W. J. Hooker as he does not know JH's address.

Delayed thanking him for the testimonials until he could give news of the outcome of his application. Position is still undecided, but he cannot be made professor as he does not possess an M.D.

Has been appointed Curator of the Herbarium at Trinity College, and his friend Dr. G. J. Allman professor. Is very pleased, and the use of library and society makes up for the loss in salary compared with the Cape. JH's testimonial had great weight with the authorities.