Autograph Letter Signed ('S. P. Rigaud') from Stephen Peter Rigaud, Savilian Professor of Geometry at the University of Oxford, to Rev. W[illiam]. T[oovey]. Hopkins of Elmdon House, Coventry [Rector of Nuffield], explaining a geometry.

Stephen Peter Rigaud (1774-1839), mathematian and astronomer, successively Fellow of Exeter College, Savilian Professor of Geometry at the University of Oxford, and Savilian Professor of Astronomy
Publication details: 
Richmond; 28 January 1824.

2pp., 4to. Bifolium. Good, on lightly-aged paper. Black wax seal adhering to reverse of second leaf, which is addressed, with postmarks, by Rigaud to 'Revd. W. T. Hopkins / Elmdon House / Coventry'. He explains, with two diagrams, a geometrical mistake by Hopkins, the letter beginning: 'Your difficulty arises entirely from your imagining that the squares of lines are proportionate to the lines themselves - This is by no means the case'.

Excerpta Cantiana; Being the Prospectus of a History of Kent, Preparing for Publication by the Rev. Thomas Streatfeild, F.S.A.'; with two other prospectuses of the same; four prospectuses for Toovey's 'History of Kent'; Autograph Letters Signed.

Thomas Streatfeild (1777-1848) [William Nicol, Shakspeare Press; James Toovey; F. C. Brooke; T. G. Godfrey Tempest]
Publication details: 
Excerpta Cantiana' (dated 'Chart's Edge, Westerham, 1 January, 1836'): London: William Nicol, Shakspeare Press, Pall Mall. [1836.] 'History of Kent': London, James Toovey, 177, Piccadilly. [1871].

The collection in a contemporary green leather quarter-binding, with grey paper boards and title in gilt on spine. Good, in heavily worn binding splitting at rear hinge. The letters are expertly mounted on leaves in the volume. 'Excerpta Cantiana': folio: 23 pp of letterpress, with illustrations and with three full-page engravings by J. S. Agar and one fold-out pedigree. PRESENTATION COPY from Streatfeild to the antiquary and historian Charles James Palmer of Great Yarmouth.

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