Talks about the very hot weather, and some matters of business that JH needs to work out with TM.

Availed himself of the calm weather to finish the parade measurement. Gives an account of the work.

Thanks for the perusal of Capt. J. A. Lloyd's papers. Comments on Lloyd's work at Mauritius. Does not think a mural circle necessary for the observatory at Mauritius. Regarding the Parade base line at the Cape. Not easy to put the guns into the ground.

The zenith sector was brought by the Wellesley and is now at the Observatory. Outlines some observations he hopes to make with it. Is about to write to R. Thom[p]son. Has some important matters to discuss with JH when he calls.

Is pleased to hear the Herschels are contemplating their return but regrets it will not be via Rio. J. D. Forbes is progressing well, may be in danger of overwork. Thomas Henderson too is doing good work at the Observatory. Gives results of lunar eclipses of Oct. 1837.

Some minor matters of astronomical business followed by an extended list of principles on which a constellation reform might be undertaken.

JH's observations disagree with JD's 'Catalogues of Nebulae and Double Stars' [observed at Paramatta, Australia]. Believes errors lie in JD's work. Will send copy of JH's catalogue as soon as it is printed. [8pp of notes extracted by JH from JD's catalog; 7 pp of JH's comments, written in another hand, about these notes.]

Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.

More about lack of success of exhibition, and about publication of observations [see AS's 1837-8-27].

Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.

Observations regarding the nebulous star 1281.

Describes his observational activities, especially the discovery of the variable nature of Eta Argo, and the rediscovery of the sixth satellite of Saturn.

About the remarkably bright variable star, Eta Argus.

Thanks for the interesting account of the star whose variability has now been established. Used the 3 1/2 foot last night and definition was good. Returns JH's letter to [James?] Dunlop and thinks there should be no offense taken. Opening for the Zenith is being enlarged. Measured JH's azimuth East and West yesterday.

Is sending him a letter of Basil Hall. William Whewell is preparing another paper on the tides and is hoping for data from JH when he returns. Hears that JH will be home in June. Looks forward to seeing him again.

Intricate enquiries at Paramatta observatory are a waste of time. Instruments are not first class. Energy would be better spent cataloguing smaller magnitude stars and measuring double stars. Urges triangulation survey, important for Asian and Pacific geography, and investigation of weights and measures, to avoid litigation as Australia develops.

An extended statement of the importance of the observatory at Parramatta, Australia.

Is grateful for his gift of flower roots; she will take great care of them on her arrival at Sydney.

Is grateful for the paper that JH has sent; he is sure it will promote scientific knowledge in New South Wales.

Gives latitude of 'this observatory' used in reduction of 'Comet stars.' Will accept systematic correction in all data to compensate for differences between TM's and Thomas Henderson's data. Instruments are erratic since telescope was moved. Using transit instrument only for sun, planets, and [reduction of Thomas] Brisbane's stars.