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.

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Sending two copies of his Botanic pamphlets and some of the plates of Cupani's "Panphyton siculum", touched up by Bonanno. Invites Smith to contribute to the "Sicilian Flora". Refrained from sending specimens as they would have been accompanied by a request for "elucidation". Asks whether the fourth volume of "Flora Britannica" has been published yet.

Thanks for "fine specimen of ornithology". Has been with Dr [Edward Daniel] Clarke. [George] Jackson has returned from Cambridge with remainder of collection of [Peter Simon] Pallas' plants, a gift from Clarke, including 'Molinia jubata', an "extraordinary plant". Botany "again revived in Soho Square" [home of Sir Joseph Banks]. [Jonas] Dryander working on "the New Holl." and new edition of "Hortus Kewensis". Has a parcel of Indian plants for Smith from [William] Roxburgh. Sir Abraham Hume reports that Amelia Hume is very ill.

Query regarding 'Mespilus tanacetifolia' and Smith's variety in "Florae Graecae prodromus". Reviews first volume of Lord Valentia's [George Annesley] "Travels", wishes there was more natural history and less politics. About to begin his "summer campaign" on Salisbury Plain with Sir Richard Hoare.

A packet from [Jacques-Julien de] Labillardière for Smith. Received latest editions of "Annals du Museum d'Histoire Naturelle" which include the whole of [René Louiche] Desfontaines' "Choix de plantes du Corollaire de Tournefort". Received from Mr Coxe a copper plate of [Peter Simon] Pallas from St Petersburg, will give it to Linnean Society to accompany his paper. Obtained all of [Alexander von] Humboldt's works on plants. Has been busy on Salisbury Plain, is going to Longleat, [Somerset], to visit Lord Bath [Thomas Thynne, 2nd Marquess of Bath (1765-1837)], says of Lady Bath "my Lady fancys [sic] herself very fond of plants but I fancy she is not". Proposes Sir Edward [Hulse] and Mr Duke as Linnean Society members.

Discusses a "curious communication" containing as "much botanical as well as physical information" [presumably a paper or figure by Richard Salisbury]. States they "are only at war with the immoral not the scientific part of "that fellow of nuisance and scandal"", concludes that [Salisbury] is now received at Soho Square [home of Sir Joseph Banks] as Lady Hamilton [(1765-1815) mistress of Lord Nelson] would be [following discovery of Salisbury stealing Sir Joseph Banks' drawings and publishing them as his own]. Discusses history of a disputed related drawing. Death of Amelia Hume. Discusses distinctness of the two species of 'Aegiphyla'.

[Letter incomplete: sections cropped, presumed destroyed]

Busy with live and [Peter Simon] Pallas' dried specimens of 'Astragali', including all of the species featured in Pallas' book on the genus, some include notes from Gmelin's herbarium. Has received large box of lemongrass in flower from [James Webbe] Tobin [(d 1814)] of Nevis, long "a desideratum among all of us". Believes it is 'Andropogon nardus' Linn. and the true 'Spikenard' of the ancients. [Richard] Salisbury's publication of his work on 'Protecea' is in "such direct opposition to Soho Square" [home of Sir Joseph Banks], as well as to the Linnean Society that it is regarded as "infamous". Discusses Linnean Society news and nominates the Marquess of Bath [Thomas Thynne, 2nd Marquess of Bath (1765-1837)] as new Honorary Member, says Lord Bath pointed out the differences between the two 'Mespilus'. Has specimens of the two 'Aegiphyla' for Smith, which were discussed by [Jonas] Dryander and [Charles] Konig. [William George] Maton has been with the Queen [Charlotte (1744-1818), wife of George III] again and Mr Hausman is making a catalogue of her herbarium.

Just returned from trip to Brighton, [Sussex]. Proposes to publish a quarterly journal on natural history covering all three brances; details of plan for Smith's opinion. Asks Smith to undertake the botanical section and recommend the whole to Longman and Rees [publishers].

Delayed sending plant specimens for Smith from George Don and they now have mildew. Was unable to accompany Don to verify habitats of 'Lychnis alpina' and 'Ranunculus alpestris' at the Rocks of Clova in Scotland but believes he has no intention to deceive. Refers to Don's discoveries of 'Cheiranthus incanus', 'Oenothera biennis', and 'Potentilla tridentata' and his response to letters from Smith and Samuel Goodenough as evidence, along with description of his methods. Discusses Don's interactions with Smith's 'Festuca triflora', 'Arundo neglecta', 'Chaerophyllum aureum', 'Chaerophyllum sylvestre', 'Saxifraga geranioides' and other 'Saxifraga'. Smith still to pronounce on Don's 'Carduus polyanthemos', [James] Brodie thinks it 'Carduus leucographus'. Establishing plantations in the north, would like large quantities of 'Salix russelliana' if its use in tanning is proven, requests recommendation for nurseryman to supply 'Salix fragilis', and asks whether 'Populus tremula' is the poplar that grows in Swedish forests. Looking forward to seeing fourth volume of "Flora Britannica" and Linnaeus' "Lapland Tour".

Introduces himself to Smith on strength of his belief that all naturalists in the world should be in communication and promote their studies by exchanging materials and observations. He and Bivona both desire to establish a correspondence with Smith. Sends a fasciculus of his of 16 Sicilian plants [extant]. Publishing a work on new Sicilian genera and species, principally fish, zoophytes, and marine plants; will send copies to Smith and Linnean Society and sends plates of fish now [extant].

Requests to be proposed a FMLS or corresponding member. They intend to institute a Sicilian Linnean Society, modelled on the British one. Lists papers he would like published in England. Sending north American and Sicilian plants for comparison with Linnaean specimens, including 'Euphorbia myrsinites'.

"Fasciculus of 16 Sicilian plants", list of plants that will appear in the work [1 p].

Plates of 21 fish, uncoloured [7 pp].

Asks after his previous letter [25 May 1809], knowing that Smith responded to Bivona; forwarding letter and box of plants from Bivona to Smith. The work he was printing when he last wrote to Smith is delayed, his other planned works. Sends plates [extant] from one of them, “Fasciculus novae vel minus Cognitarum Siciliae plantarum”, with queries for Smith to answer.

Two uncoloured plates of plants.

Did not receive Smith's letter asking him to attend the Carrow Bridge Bill [in the House of Commons] until it was too late [this was a contentious scheme to build a bridge over the River Wensum at Carrow Abbey, near Norwich, for which an Act of Parliament was passed on 31 May 1809]. Apologises for being a "lazy and unprofitable associate of the Linnean Society". Has conclusively proved that 'Picus medius' is not a species and is only the young of 'Picus major'.

Still waiting to hear Smith's opinion on those plants he sent himself and via [Charles] Lyell. Numbered observations on enclosed mosses he previously sent to [Dawson] Turner, also without response: 2. [sic] a 'Grimmia', would like to name it after W Symonds, who died in Barbados; 3. a 'Grimmia', proposes name 'G. alpina' or 'G. nivalis'; 4. a 'Hypnum'; 5. another 'Hypnum'.

Numbered observations on enclosed plants: 1. 'Potentilla tridentata' [Smith annotation: "right"]; 2. 'Lychnis alpina' [Smith annotation: "right"]; 3. 'Ranunculus alpestris' [Smith annotation: "right"]; 4. a 'Silene' resembling 'S. alpestris' [Smith annotation: "the 'Silene' will be sent in my next"] ; 5. a 'Crepis' [Smith annotation: "'pulcra' HL"]; 6. 'Cochlearia groenlandica' [Smith annotation: "right HL"]; 7. the true 'Erigeron uniflorum' [Smith annotation: "right!"]; 8. a 'Saxifraga' cultivated for 2 years in strong, rich, wet soil [Smith annotation: "new, the 2 darkest specimens green specimens is cultivated in the wet soil!"]; 9. a 'Cerastium' [Smith annotation: "'Stellaria cerastoides'"]; 10. 'Fontinalis pennata' of Linnaeus [Smith annotation: "'Neckera pumila'"].

Enquires after specimens he sent some years ago as 'Spergula maxima' and 'S. arvensis' [Smith annotation: "both 'arvensis'"].

Two small specimens, labelled "2".

He has been collecting the palmated 'Saxifraga' for some years, and has cultivated them in every soil and situation to determine to settle which are species and which are varities, will send specimens of all those he thinks species.

Encloses specimens of 1. 'Saxifraga' from Angushire that may be two species or two varities [Smith annotation: "'pedatifida' Ehrhart"], observations; 2. 'Lamium' he sent last year [Smith annotation: "pray send seeds"]; 3. '[Lychnis] alpina' [Smith annotation: "HL"]; 4. a 'Juncus' distinct from common species [Smith annotation: "no"]. Observations on the 'Lamium'. Asks Goodenough to forward this letter to Dr [James Edward] Smith.