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Circular letter informing him that the third volume of his Cathedra Petri will be published shortly.
Sending the prospectus for the third volume of his Cathedra Petri. Would like his friends to talk about it, and a competent person to review it. Has just had a friendly letter from William Whewell, the only one of his friends now resident at College.
Is thinking of publishing a biographical dictionary and encloses an article on JH, which they would like him to revise if necessary.
Charles Lyell has given her JH's translation of J. W. Goethe's poem. Comments on it.
Thanks for the fragment of poor [Ben?]. Comments on this and the composition of the metal of bells.
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.
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.
Searches for asteroids. Measures double stars and variables; Alexander Herschel assists. Asks JH's opinion of parallax measuring methods. R.S.L. funds offered to M. J. Johnson's family in his memory.
Discusses his efforts making reflecting telescopes.
Informs JH which observatories received the object lenses from his workshops.