Ditton, Humphry - A Treatise of Perspective; Demonstrative and Practical Illustrated with Copper Cutts

London, B. Tooke and D. Midwinter, 1712. 1st edition. Leather Bound. Pagination: pp. xvi, 1-48, 49-50 absent but text continuous, 51-164, 167-168, 165-166, 171-172, 169-170, 6 plates, 173, [1]. Small 8vo. Recent professional re-bind in full decorated turquoise goatskin. Fold-out schematics within. Our copy of 'A Treatise of Perspective' is complete, with Errata page, although some of the latter pages are bound out of order. The last part of the book is 'An Appendix containing a brief Account of some Things of Use, in the Art of Perspective', and includes comments and suggestions on stage design, 'lights and shadows', 'pictures in pictures', etc. The last page of the book contains an advertisement. The book is dedicated to Francis Nicholson 'General of Her Majesty's Forces in North America'. On the blank page, on the reverse of the dedication page, a 19th century former owner has practiced his signature. There is a signature to the bottom margin of the title page. The text shows some foxing, mainly to the margins. The six folding plates are foxed and have been repaired by our conservator. Our master binder has hand-tooled a geometrical design from one of the plates on to the front board, and has sewn hand-made headbands on to the book. The book is now bound in full blue goatskin, with the spine in compartments: a very fine presentation. Ditton (1675-1715) was a mathematician, and master of a new mathematical school at Christ's Hospital for which this book was written. With William Whiston he derived an impracticable scheme for the determination of longitude by the firing of a shell set to explode at a certain height. He published several other noted works including 'The General Laws of Nature and Motions' (London, 1705, a commentary on Newton's 'Principia'), and (with Whiston), 'A New Method for Discovering the Longitude both at Sea and Land..' (London, 1714). Ill.: fold-out schematics.

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