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Recalls JH's visit to Hammersmith. Asks TB to permit JH's cousin Mary Baldwin to visit Slough at time of Ascot races. Received letter from [TB's daughter] Sophia.

Has arrived in Scotland. Recently witnessed a large comet. Thanks JH and family for hospitality at Slough.

Thanks JH for information concerning the comet. Planned to build telescope with object glasses separated from each other. Optician said this would not correct spherical and chromatic aberrations. Wants advice.

Wishes to teach privately. Asks William Herschel to write a recommendation certificate. Weather has been problematic. Sends greeting to the elder Herschels.

Concerned over illness of William Herschel. Discusses 'Evolution of Curve Lines.' Describes [Christiaan] Huygens's terms for evolution of curves. Offers advice to avoid problems with them.

Grateful for letter from Brighton. Agrees with JH concerning comet. Is suspicious of those who claim it is the same comet that was seen one year previously.

Describes the difficulty of [P. Laplace's] Mécanique céleste. Has a new pupil. Discusses proper boundary of a front view mirror.

Discusses problem of the ellipse and offers a method of solving it. States the proper boundary of a front mirror is too difficult to ascertain. Still having problems with teaching.

Describes lunar rainbow seen on 22 August. Congratulates JH on his mathematical attainments. Describes his enjoyment of mathematics. Hopes JH will continue to correspond.

Thanks Smith for mention of him in his article on 'Salix russelliana'. Sends copy of his "Parochial Divinity" for Smith. Explains circumstances behind his sending specimen of 'Vicia bithynica' last summer: he had hoped to be proved its first discoverer, but found [James] Sowerby had received it a month before from a Sussex friend; gives its location anyway and urges Smith to mention receipt of it also; observations.

Sending specimens of the 'Vicia', a 'Gnaphalium', and an unknown plant like a 'Serapias' ['Epipactis purpurea']. Previously sent Sowerby fertile specimen of 'Bryum annotinum'.

Long list of specimens with habitats sent to Smith [possibly two different letters].

The 'Veronica' he gathered on the way to the Giant's Hole [St Vincents Rock, near Bristol] was in a very dangerous spot and considerably larger than that figured in "English Botany", will send this specimen if he cannot find another at home. Briefly saw Sir Joseph Banks yesterday.

Received new "Linnean Transactions", criticises [Robert] Teesdale's paper [ 'A Supplement to the Plantae Eboracenses'] for being too long; doubts propriety of giving whole floras. An attempted robbery at Hall Place whilst he was in Exmouth, [Devon]. Has anonymously published a six penny pamphlet "Cautions to young sportsmen" in attempt to prevent gun accidents, inspired by Lord Andover's accident [Charles Nevinson Howard, Viscount Andover (1775-1800), eldest son of John Howard, 15th Earl of Suffolk, killed by accidental discharge of his fowling piece], and that there is no advice of this kind in print except single line in [Thomas] Page's "Art of Shooting"; two gunmakers have seen and find no fault with it.

There is an account of Lord Andover's death, written by Mr Coke's desire, in January's "Gentleman's Magazine".

Unsure if the packet of dried plants he sent Smith March [1804] has reached England yet. Sending another small collection of plants, and if and when he is settled as a missionary here he will send for his herbarium and be more forthcoming with specimens. Sending drawing and description [both extant] of 'Polyandria' ['Magnoliaceae'], the drawing is by [Elizabeth Gwillim (1763-1807)], wife of Sir Henry Gwillim, Justice of the Supreme Court of Jurisdiction at Madras; Lady Gwillim says she has sent a living plant to England. Sorry Smith's parcel to him of 1802 was lost.

Description of 'Polyandria enneagynia' [see RelatedMaterial below for drawing].

Hopes his pamphlet "Cautions to young sportsmen" is widely circulated and prevents accidents; only criticism received is that it is too short, the gunmakers Manton in Dover Street and Joseph Manton in Davies Street make no objections in spite of its attack on double guns, which form greater part of their profits. Will put his name to a second edition if the 750 copies sell and regrets not already doing so. Criticises fashion for books to include engraving of the author and mocks Charles Small Pybus' [(1766-1810), politician] poem "The Sovereign" supposing "he expects some of the Russian Court Ladies to send for him [...] in consequence of the beauty of his appearance, at the head of his verses".

Page's book printed for Scutcherd & Whitaker, details of Norwich printing.

[This letter is marked "Duplicate", sent with Rottler's letter of 15 October 1807, see RelatedMaterial below]

He has only just received Smith's letter of 30 April 1800 and his "Specimen of the botany of New Holland", which he had long given up ever receiving. Encloses duplicate of his letter of [14] October [1806], which accompanied a parcel of plants. Received [Nathaniel] Kindersley's letter of 1 May 1806, will reply when chest of books for female asylum arrives.

[Label attached to letter:] "'Tetracera sarmentosa' 83) Vahl Delima Lin.".