Sympathizes with Dr. C. T. Beke but regrets he is unable to contribute towards his assistance.

Returns a paper of Mr. Stobart, which deals with astronomical knowledge of the early Egyptians.

Comments on WL's 4-foot equatorial telescope of which WL sent JH a lithograph [see WL's 1860-2-8].

Comments on WL's nebulae diagrams and asks for more.

As JH is preparing a catalogue of all known nebulae, would WL please provide a complete listing of all he has seen.

Writes to ask EL a series of questions about probabilities related to shooting at targets, with variations in the size and shape of the targets.

Comments on the several drawings of the same nebulae; thanks WL for the invitation to Malta but JH is too ill to accept.

In response to FK's 1866-4-17, JH says that he knows nothing about screw propulsion in ships and so cannot comment on FK's paper.

Comments on the relationship between the plane of the earth's orbit and the obliquity of the ecliptic.

JH responds to UL's concern about the Isaac Newton-Blaise Pascal forgeries [see UL's 1869-10-4].

Is obliged for GM's letter and for the trouble he has taken over JH's paper on musical scales. Object in writing this paper was to clear the ground as it were. Elucidates some of the points in his own paper and comments on parts of GM's paper.

Regarding the inventor of the compensation bars. Would not attribute their invention to Thomas Drummond in the light of J. E. Portlock's evidence. Thanks for the paper on ancient Greek kinship.

Regrets delay in answering letter but has been away from Collingwood and letter was not forwarded. Is unwilling to write article for another journal as he is already producing articles for an editor. Would editor of Good Words be interested in printing three lectures he gave at Hawkhurst on volcanoes, comets, and the sun? Could work this up for an article.

Will not be able to produce his article in time for the January issue, but could write a much better article on meteorology if given longer, till July.

Does not think Mr. Thornton's pamphlets solve the problem of squaring the circle as the circle is 3/4 of the circumscribed square. Comments further on these theories.

Is fully satisfied with the objections in WM's letter regarding the individual records of barometric pressure. Gives advice on how the records should be shown.

Is honored by DM's letter and proposal to dedicate his book [Traité général de photographie] to JH. Points out some errors of attribution he would like incorporated if not too late. Pass on his good wishes to J. A. F. Plateau.

Thanks for the receipt of the Radcliffe catalogue of stars, but wishes observations had been equatorial rather than circumpolar.

Suggests an observational program for RM's newly purchased transit circle [see RM's 1861-10-21].

Declines the opportunity of writing an article on the Great Pyramid for Good Words, especially as he disagrees significantly with Charles Piazzi Smyth's views. Might write an article on another subject.