Discusses the ale he sent. Hopes his hypothesis of the origin of the solar system did not offend JH.

Has no intentions of making solar volcano theory public. Offers one more possibility for its validity. Pleased that Caroline Herschel is well and remembers him.

Returns his paper and would be glad to receive an abstract. JH has been removed from the Council of the R.A.S. in deference to his wishes. King of Denmark has offered a gold medal for the discovery of a comet.

Has sent off his observations by the coach. Account of the Oxford meeting is in Tilloch's Magazine, now amalgamated with David Brewster's Edinburgh Journal. Will be able to include the new catalogue of stars in the forthcoming volume if JH desires it.

Hopes to have JH's catalogue for the first meeting of the R.A.S. Anything about the comet would be welcome. Regarding one of Franciscus Vièta's mathematical theories.

Has received the catalogue and it will be sent to the press. Is grateful for JH's offers. Does he know anything of Bullialdi's (Ismael Boulliau) Astronomica philolaica? Refers to Franciscus Vièta's Harmonicum coeleste. 25 copies of JH's latest paper has been forwarded.

Regrets a hasty opinion should have evoked so long a letter. Regarding the status of cholera. Would be grateful for a specimen of W. Herschel's handwriting. Sun has been showing symptoms of decay and several have been trying to observe it with limited success.

Describes a new form of sketch book, which may interest him. Encloses a paper from a friend, which can be answered by means of algebra, of which he himself is ignorant. JH's affairs were mentioned by Sir James Graham, who suggested that the Admiralty may be able to assist JH with a passage to the Cape.

Sent JH's last letter to Sir James Graham to show him JH's feelings in the matter of transport to the Cape. Sir James replied to the effect that he would be very pleased to arrange a passage for JH. Hall feels in an awkward situation and thinks that JH should visit the Admiralty and have conversation with Sir James.

Saddened at the death of JH's mother; knows that 'it can't be long before I shall follow the dear departed.'

Reminds JH to send his catalog of double stars.

Has just heard of the death of Lady Herschel. Will be at Slough for the funeral on Friday.

Regarding the situation on the Cape of Good Hope. Is sending a paper of Dr. [William?] Henry. David Brewster suffered last Thursday.

Regarding the results of the Finsbury election. Has been invited to a public dinner and would like him to come, together with some of his scientific friends. Part of his machine is ready.

Is delighted that JH is coming to dinner.

Thanks JH for his recent writings on double stars, and comments on a number of observational issues related to the same topic.

J. J. Lister also made set of experimental glasses similar to JH's [see TxU:H/L-0255]. Lister's experiments on color-blind persons. Will forward Lister's glasses to [John] Dalton. CM plans similar experiments with JH's glasses; will forward results to JH at Cape of Good Hope. Wishes to see JH's grinding and polishing machinery.

Wants information for the journal. Apologizes for the delay in writing the letter.

Thanking him for sending the Memoirs.

Has asked L. F. Debure to send to JH the third volume of the Memoirs of the Foreign Correspondents of the Academy of Sciences.