Is trying to clean up JH's nebulae observations preparatory to leaving for the Cape; comments on communications from F. G. W. Struve about double stars.
Observations on the various ways of measuring angular positions (of double stars). Opinion on JH publishing his catalogue of nebulae. Remarks on the low standard of astronomical observations in England compared with the Continent.
Is grateful for GA's encouragement to prepare JH's nebulae observations for publication before leaving for the Cape; it now seems clear to JH that he cannot leave before 1833; JH has had further communications from F. G. W. Struve about double stars [see JH's 1832-5-4].
Observations on the gravimeter.
Requests that the engravings for the catalogue of nebulae be speeded up. Further observations on the gravimeter. Observations on W. R. Hamilton's experiments on biaxial crystals using A. J. Fresnel's wave surface theory.
Requesting a copy of G. A. A. Plana and Francesco Carlini's 'Lunar Theory.' Further remarks on the practicability of the gravimeter.
Inviting JH to his house if he attends the meeting of the B.A.A.S. Proposes to visit JH in London.
Observations on the work of S. D. Poisson and P. G. le D. Pontecoulant. Is JH's 20-ft. telescope any use for measuring angles and distances? Discussion of solar spots.
Encourages GA to consider favorably the offer of Hugh Percy [Duke of Northumberland] of donating a telescope to Cambridge Observatory.
Copy of letter to Hugh Percy (3rd Duke of Northumberland) stating that the Duke's offer of a refracting telescope of great power, to Cambridge Observatory would be a valuable gift. To JH: Remarks on gift of telescope, planet reduction money, and on his geological exploration of the Charnwood Forest.
Has visited Hugh Percy (3rd Duke of Northumberland) at Buxton, who suggests that JH approaches R. A. Cauchoix for the glass for the new telescope.
A note along with letters from R. A. Cauchoix, the telescope maker, and [J. C. Spencer,] Lord Althorp, about the B.A.A.S.; JH is trying to clean up observation reports before leaving for the Cape.
Further about the telescope to be donated by Hugh Percy [see JH's 1833-8-15], along with a promise that JH will write to R. A. Cauchoix about the telescope.
More about arrangements with R. A. Cauchoix and the telescope for Cambridge Observatory; JH also comments on the state of his nebula work.
Further discussion of the telescope being donated by Hugh Percy (3rd Duke of Northumberland).
Summary of the letter of same date sent to JH at Slough (HS.1.60).
Hugh Percy has approved the arrangements, which JH had made with R. A. Cauchoix [see JH's 1833-9-29].
Has not been requested to settle the affair about Henry Taylor and the Stephen Groombridge business. Would JH send him what he has ready for printing, with directions? Observations on the 4th satellite of Jupiter.
Observations on the weather of the past winter. 42 Virginis. Printing of [Stephen] Groombridge's catalogue. Has written article for the Penny Cyclopaedia. Refracted light in prisms. Machine for polarization of the sky. Petition to Parliament to abolish religious tests for degrees at Cambridge.
Summary of GA's 1834-4-24, with additional information that he has written a book entitled Gravitation. Confusion over 42 Virginis. Affair between James South, and Edward Troughton and William Simms has been referred to arbitration. Experiments on Newton's rings by transmission. Letter to Thomas Maclear about his mural circle. Saw the eclipse of 16 July. Tarnish of JH's mirrors. R. A. Cauchoix's delay with telescope. [The final two pages of this letter are from Richarda Airy to Margaret Brodie Herschel.]