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Letter from James Robertshaw of Colne, [Lancashire] to George Chapman, engineer of Whitby, [North Riding] Yorkshire, 29 Jan 1846. Reply on behalf of Mr Thornber of Vivary Bridge, [Colne], to a letter of 27 Jan 1846; referring Chapman to his letter of 8 Jan (copied on the third page of this letter) in reply to Chapman's of 5 Jan. Chapman had asked for £20 for use of 'the patent expansion gear', but Thornber had stopped using it, had given Chapman notice of doing so, and was prepared to appear to any process Chapman proposed to issue against him.

Autograph, with signature.

Manuscript 'Reasons for Mr. Hornblower's petitioning the Honourable House of Commons for an Act to extend the term of his patent', [24 Feb 1792]; the patent had been granted in 1781 for 14 years, permitting the use of his steam engine in the Cornish mines. The case of James Watt is cited: in 1774 he obtained an extension of a patent 'of a similar nature, for 25 years certain'.

Draft of an assignment of a patent for an unnamed invention, originally procured by B.E. Clark in 1878 as agent for Almet Reed of New York. Almet Reed assigned the patent to John van Dussen Reed of New York. Signed by B.E. Clark.

British and French patents, 1861-1862, for John Marshall's invention for 'the collection, concentration and transmission of sound, so as to facilitate the hearing.' Also includes a Belgian 'brevet d'importation.'

Letter from Thomas A Cook of Newcastle upon Tyne to H B Jordan, Esq of the Alkali Works, Bristol, 8 Dec 1845. Acknowledging Jordan's letter of 4 Dec 1845. Discussing at length the relative efficiency of stone stills [for manufacturing alkalis] used by Cook [at Walker, Newcastle], by Jordan and by Lee and Co; advising Jordan to visit Lee and Co and copy their stills exactly. Mentioning a Mr Bell's patent, the surprising cheapness of coal, and a meeting of masters [i.e. factory owners] which he was unable to attend. Noting that the returns show an increase of stock.

Autograph, with signature. A note [in Jordan's hand] on page 3 states: 'Ansd. 5 Jany'.

Letter from John Chapman of 1 Albion Street, Hyde Park, [London] to George Grote, 17 Nov 1858. Regarding the copyright of the Westminster Review.

Autograph, with signature.

Facsimile of a letter from George Gordon Noel Byron of Venice to M [Giovanni Antonio] Galignani, editor of Galignani's Messenger, 18 rue Vivienne, Paris, 27 Apr 1819. Disclaims the authorship of The Vampire, which had been attributed to him in Galigniani's Messenger '... I desire the responsibility of nobody's dullness but my own ...'.

Facsimile copy of an autograph letter, with signature.

Letter from John Burn of Orton, [Westmorland] to Thomas Cadell [the elder] Esq, 'bookseller, Strand, London', 26 Mar 1792. 'I have by the coach this day sent you Barry's Justice [i.e. E Barry Present practice of a justice of the peace (1790)] & in the margin have marked the vs & pages in our Justice [i.e. R Burn The justice of the peace and parish officer (1755 and many susbequent editions)] from which he has copied. I may safely say there is not one hundred pages, put the whole together of his 4 volumes, which is not copied from my father...'.

Autograph, with signature. Franked: 'Appleby'[-in-Westmorland].