Expresses JH's preferences with respect to the appointment of the Cape Observatory astronomer in terms of the choices available [Follow-up letter to JH's 1831-9-13].

Of isomorphic crystals and their varying behavior in response to heat, and of double stars.

Introduces Miss Hope, who has been studying mathematics with WR. WR has made some curious discoveries in Voltaic electricity.

Brought a copy of Mrs. Somerville's book [Mechanism of the Heavens] to Chancellor [Henry Brougham]. Wants JH to review it for the Quarterly Review. The Chancellor wishes to know if JH would like to be knighted.

Discusses feelings about offer of knighthood. Is ambivalent. Praises the Chancellor's [Henry Brougham's] interest in science.

Received word from the Chancellor [Henry Brougham] that he mentioned knighting JH to King [William IV]. If JH does not want this honor, he should write the Chancellor immediately.

Says JH virtually has no choice concerning accepting knighthood, because it is the will of the Chancellor [Henry Brougham] and King [William IV]. Urges JH to acquiesce for the benefit of science.

Will not oppose the the wishes of the Chancellor [Henry Brougham] concerning JH being knighted, especially if this might benefit science. Will visit Chancellor to thank him.

Invites Herschels to dinner at Mrs. Turno's. Wishes to take a look at sky when JH gets home.

Comments on a number of astronomical matters including double stars, awarding of medals, and on the elements of [Halley's] comet.

Is sending a query from Florence, also a letter from Vincenzio Antinori, which please return. Additional facts supporting his views expressed in the Decline of Science. Frederick Augustus (Duke of Sussex) has been challenged over government of the R.S.L. Engine progresses well. [Also contains draft of reply which is the same as JH's 1831-9-13.]

Is sending mirror in perfect state for Vincenzio Antinori at Florence, together with his letter. Regarding Gerard Moll's book. Has no time to spare to attend the [B.A.A.S.] meeting at York.

Is much obliged for his advice regarding [Stephen] Groombridge's catalogue. Will send him the proof sheets as available. Has he seen Gerard Moll's Decline of Science in England?

Is grateful for his observations on the method of printing [Stephen] Groombridge's catalogue. Fearon Fallows is seriously ill; does JH know of a suitable successor?

His views on a successor to the Cape Astronomer.

Remarks by JH on proof sheet of Henry Taylor's catalog of circumpolar stars observed by Stephen Groombridge. Why is Gerard Moll, a foreigner, engaged in purely English controversy? JH wants no part of Charles Babbage and James South in this matter. Regrets JH's earlier statements. Sends extract from [Richard] Copeland's letter.

Is sending sketches, etc., from his field book made while visiting the Isle of Wight. Disagrees with some of WF's representations.

Comments negatively on whether photonomy is a proper name for the study of light. Has suggested that the B.A.A.S. invite eminent scientists to survey their specialties. Discusses whether B.A.A.S. should meet at Cambridge. Has published his review of JH's Prelim. Discourse.

Thanks WW for his favorable review of JH's Prelim. Discourse. Vernon Harcourt has asked JH for his views on the establishment of a B.A.A.S. Expresses some support but numerous reservations. Responds favorably to WW's suggestion that prominent scientists prepare surveys of their specialties for the meeting.

Death of his father, [Sir Thomas Gery Cullum], on evening of the Coronation Day [of William IV, 8 September 1831]. Notes that September appears ill fated to him, having lost his aunt Mrs Palmer on 12th, his mother on 13th, and now his father on the 8th.