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DIGGES, Leonard (d. c.1571). A Geometrical Practical Treatize named Pantometria, divided into three Bookes, Longimetra, Planimetra, and Stereometria. London: Abell Jeffes, 1591.
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DIGGES, Leonard (d. c.1571). A Geometrical Practical Treatize named Pantometria, divided into three Bookes, Longimetra, Planimetra, and Stereometria. London: Abell Jeffes, 1591.

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DIGGES, Leonard (d. c.1571). A Geometrical Practical Treatize named Pantometria, divided into three Bookes, Longimetra, Planimetra, and Stereometria. London: Abell Jeffes, 1591.

2° (290 x 192 mm). Ruled in red throughout, woodcut illustration on title, woodcut diagrams and illustrations, 2 large woodcut coats-of-arms, woodcut initials, head- and tail-pieces, with first blank, errata leaf at end. (Margins of blank repaired, title lightly soiled, inner tear in lower margin of E1 repaired, light marginal browning or soiling.) Old style calf by Mouteney (new endpapers), slip case. Provenance: P. Proby, January 1594 (signature at foot of title) — H. BRADLEY MARTIN (bookplate) — Harold Greenhill (bookplate).

Second and best edition of this work of practical geometry, containing the first description and illustration of the theodolite, which Leonard Digges invented, and a description of ‘perspective glasses’ anticipating the invention of the telescope: 'here, for the first time, we have indications of an instrument which we may call a reflecting telescope' (King, The History of the Telescope, p.29). The work was first published in 1571; the second edition was revised, expanded and completed by the author's son, Thomas Digges (d. 1595). The first three books consider surveying, measuring and gauging, and are followed by Thomas Digges' treatise on ballistics which disproved many commonly held erroneous ideas; 'these appendixes constitute the first serious ballistics studies in England’ (DSB). Cockle 16; STC 6859; Taylor, Tudor and Stuart 42.
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