Thanks for JH's article on Physical Geography from the new edition of the Encyclopaedia Britannica. Comments on this and gives details of some of his own researches into the causes of ocean currents.

Recently came across some instructions JH had drawn up for persons who are color blind. Sends a note explaining the work of William Pole on this same subject. Has left the manufactory at Ipswich.

Sends a small fragment chipped from the second great bell. Comments on the metal of the bell and the causes of the cracks. Unable to attend the R.S.L. dinner tomorrow.

Has received the papers JH sent and values them highly. Can JH advise him on making regular observations of sun spots. Explains his apparatus.

The yellow substance turns out to be pentasulfide of arsenic, with a slight excess of sulfur; comments on its properties.

Thanks for the photographic notes and for the remarks on color blindness. The remarks on the composition of colors interested him as he has difficulty in distinguishing shades of brown and green.

Offering seats for the funeral of Arthur Wellesley (1st Duke of Wellington) in St. Paul's.

Compliments to the Herschels. Was interested in JH's article in the last number of Good Words. A long time since he has seen Alexander Herschel.

Thanks for his articles on the prediction of time; comments on it. Has been translating an article of John Tyndall.

Has received the letter and invitation. Will travel to Etchingham station and walk to Collingwood.

Sending two volumes of his own Cosmos. Regrets he did not visit him in 1857.

Would like to dedicate to JH a book on climatology that AM is preparing.

Letter accompanying AM's book on climatology.

Will JH add his signature to the slip to add to the memorial to prevent the Natural History collections being removed from the British Museum.

Thanks for his memoir on the projection of the sphere; it will be read at their meeting after next Monday. Up to their necks in the Yang-ste-kiang.

Thanks for the memoir on his ingenious projection. Now sends a short theoretical view of Robert Stephenson on the astronomical reasons for fossil plants in the Arctic regions. Would like JH's comments.

Sending the syllabus of the Government School of Mines, which should give JH all the information. Will be pleased to see him at the Museum if he has any further queries.

Pleased to hear that JH's daughter is to be her successor. Thinks the Queen is right though AM's letters will not turn out to be so pro-slavery as given out to be. [Postscript gives reasons for her resignation.]

Regrets to hear that JH has been ill. Gives the title of her book and the reasons for her views on slavery.

JH's obliging note concerning corrections to the maps in JM's Handbook for France has been sent to him at Knock. Would like to present the appropriate handbook should JH or his friends visit the Continent. Admiralty Manual has now been all sold and a new edition is required; has JH any alterations or suggestions?