Is grateful for JH's assistance in obtaining back numbers of the publications of the R.A.S. Would like the chance to discuss his chemical experiments before the Royal Institution.

Thanks JH for supporting his proposed method of designating variable stars, adding that G. B. Airy, J. R. Hind, and W. H. Smyth also accept it. Hopes to succeed M. J. Johnson as director of Oxford's Radcliffe Observatory.

Is grateful for JH's intervention on his behalf. Comments on A. J. Beresford-Hope's review of his own book, and would be pleased if JH would pass on his comments.

Is obliged for letting him see Greenwood's letter about the book, but he did not himself write the review; it was written by an eminent scholar in that field.

Would like his opinion on the form to be adopted for the dedication.

Comments on his own work in optics and related fields.

Has heard that JH's son [Alexander] is observing variable stars at Charles Pritchard's school. Gives latest data on these stars. Suggests other variables to observe. Has adopted JH's proposal of using Julian day numbers for dating variables in his catalogue of variables.

Comments on, and encloses, a letter from JH's son William James, who has accepted responsibility for trying to resolve a grave situation [in India].

Has a copy of J. R. Young's investigation. Gives one of his own theorems.

Thanks JH for agreeing [1860-3-17] to be a subscriber to HS's project and for JH's critique of HS's use of the term 'Absolute.' Admits that it has difficulties.

Invites JH to stay at BP's home for the B.A.A.S. meeting 27 June. Notes the new museum opens at the same time.

Regarding the printing of JH's British Metrical scale. Comparison between the chimes of Big Ben and those of St. Mary's, Cambridge.

Further details on the chimes of Big Ben.

Sending a short paper which is to be printed, and would be glad with any comments. Currents indicated are deduced for a small number of cases only.

Expresses his views on how the British should select their standard of length. Also discusses John Taylor's views of the Great Pyramid.

Thanks JH for 'testimonial' to the Radcliffe Observatory on his behalf, but the response is not encouraging. Describes the tribulations of his career in astronomy. Makes further suggestions regarding the variable stars being observed by JH's son [Alexander].

Does not wish to forward some letters of AS's brother, Richard, as JH has made marginal notes he would not wish others to read.

Sent proof for vol. 2 of St. Helena observations to JH. JH's promised article in Edinburgh Review on progress in science of terrestrial magnetism. Embarrassing delay by government in responding to Prince Albert's request for five-year magnetic survey is resulting in loss of interest among prospective directors. Proposal by Americans to assume leadership of survey in North America. Dutch observatory in Java and Jesuit observatory in Cuba.

Sending some crystals of a substance he obtained by the separation of gold from iridium. Would be glad of his comments.