Thanks for JH's efforts on behalf of her son (Charles Babbage) on his election to the Lucasian professorship at Cambridge.

Informing him that he has been elected to the Lucasian professorship at Cambridge. Offers congratulations and gives views of other friends of his success. He should return to take up his appointment.

Writes CB at Naples to inform CB that CB has been elected Lucasian Professor at Cambridge. Urges CB to write to thank the electors.

Would FB take the chair at the next meeting as he is busy nebulae-hunting. Regarding a printer for the papers of the Astronomical Society. Would like his own paper printed before June. Discusses J. J. Littrow's optical paper. Sends article on Light, which he has written for the Encyclopaedia Metropolitana.

Has just had a visit from James Graham[e], who came to apologize for a misunderstanding. Sends a Hindoo myth, which she is sure he can utilize for a poem. Her husband was pleased with JH's paper on light. Has himself written a paper on the collimator.

Thanks for his paper on light. Regarding the meeting on Friday. Pendulums. Invitation to dine with him. Geological Society has been offered room; would like him to think about the possibility of one for the Astronomical Society.

Invites himself and his brother to JH's for tea.

Of people JG has met.

Confusion around [James] Grahame's possible use of the verses that JH had offered to MK as suitable for the music Cherry Ripe.

Many thanks for the Hindoo myth. May attempt to put it in verse when he can spare the time from star gazing and computing. The South American Indians imagine their ancestors are hunting among the constellations. Is glad James Grahame called. Sorry to hear a poor account of Captain Kater's health.

There may be a delay in supplying the copy of her book on fishes as she has to wait for a sufficient number of subscribers.

Has not heard from Thomas Young about the reduction of the Parramatta Observations. James Dunlop will not carry out this work; best to leave it to the one named. Will be coming to London soon as the New South Wales Bill comes up, so will call on JH.

Needs more money to proceed with Charles Babbage's calculating machine.

Board of Longitude will accomplish nothing by meeting before T. M. Brisbane comes to town, but TY suggests informal discussion, either at TY's or Henry Kater's.

Sending the Memoires of the Académie.

Henry Kater not well [enough to travel] and requests committee meet at Kater's house. TY urges JH to verify W. H. Wollaston's measurement of refraction before republishing JH's essay. Diagrams Christiaan Huygens's principle of refraction. TY is making forms of aplanatic lenses.

Hopes JH will stay for Sunday dinner at TY's before JH visits Dr. Litten. If so, please invite T. M. Brisbane and Francis Baily to join them. Writes formula TY discovered for discontinuous spectra. TY can now communicate with H. W. M. Olbers and T. J. Seebeck via H. C. Schumacher.

His feelings on hearing of his being elected to the Lucasian professorship at Cambridge. Regarding Joseph Clement and the work on his machine.

Encourages JH's efforts in writing a treatise on sound. Asks JH's advice on a system of mineralogical classification that WW, as Cambridge's new professor of mineralogy, had drawn up.

Thanks for his generous letter and enclosures.