Proposes an adjustment in the proportions of the ingredients in the next glass-making experiment.

A letter accompanying several other letters that might be of interest to GA; encourages GA to act quickly if he means to try for 'the appointment.'

George Airy has written JH to say that he does not at this time wish to go to Dublin to offer himself as a candidate for the Andrews Professorship at Trinity College, Dublin. Asks advice on aspects of Airy's candidacy.

Offers information, and strategy, which GA may find useful if he is seriously considering a position at Dublin Observatory; much of the information JH provides comes from Francis Beaufort.

On the poor functioning of the R.S.L. Glass Committee.

As G. B. Airy has chosen not to stand as a candidate for the astronomical position in Dublin [Astronomer Royal of Ireland], JH is strongly supporting DL for that position.

On the questions of the usefulness of occultations and the use of mean time in astronomy, JH would much value WS's opinions.

Comments on GA's response to an offer from Dublin [see JH's 1827-4-7]; also about the discussion in the Council of the R.S.L. of a report of experiments from William Whewell and GA; JH makes some disparaging remarks about the work of John Pond.

Received the first volume of Johann Pfaff's German translation of William Herschel's papers. Just completed a second catalog of double stars; review of nebulae going slowly. JH comments on his precise sweeps.

Informs TT that the R.S.L. will print his paper on chromium. Discusses results obtained in TT's experiments.

Suggests change in composition of a pot to be made by [Apsley] Pellatt for an experiment.

Discusses JH's efforts to send various publications to JL and to receive publications from JL. Hopes Franz von Gruithuisen, whose 'strange' lunar observations are causing controversy, will come to England with his telescope. Discusses JH's progress in preparing a catalog of nebulae.

Explains to GA the disposition, by the Committee on Papers of the R.S.L., of GA's experimental results [see JH's 1827-5-3].

Thanks managers of Royal Institution for generosity in offering facilities [to Optical Glass Committee] for erection of a furnace.

Received letters of 8 Dec. through [Charles] Babbage, including interesting work on statistical returns for Netherlands. Rejoices at prospect of new observatory in Brussels. Promises to do his utmost to help. Honored to be correspondent of Academy of Brussels. Requests AQ address further letters to JH as 'President of Astronomical Society.'

Outlining his scheme for election of candidates to a post [appears to be an astronomer for an observatory].

Has received TH's alterations for TH's publication. Astronomical Society's council is offering TH some volumes of Greenwich observations.

Comments on the observations in two of JG's papers.

Invitation from Duchess of Clarence [Adelaide] calls JH to London. Appointments with [Davies] Gilbert and R. H. Inglis on Monday. Will reschedule Board of Longitude meeting. Sent containers for Mr. Atherton. Paid MPH's bills. [Agnes] Kater is recovering. News of Beckwiths and James Grahame.

Announcing his decision of resigning from the Secretaryship of the R.S.L.