Sculptura, or, The history and art of chalcography, and engraving in copper : with an ample enumeration of the most renowned masters and their works : to which is annexed, a new manner of engraving, or mezzotinto (1755)

Evelyn, John, 1620-1706, Rupert, Prince, Count Palatine, 1619-1682, Payne, John, d. 1787, Worlidge, T. (Thomas), 1700-1766 · London : Printed for J. Payne ... · leaf 154

An illustration from Sculptura, or, The history and art of chalcography, and engraving in copper : with an ample enumeration of the most renowned masters and their works : to which is annexed, a new manner of engraving, or mezzotinto, 1755, leaf 154 — llowing Icon ism is thusexplained. Suppofe, in the uppermoft figure of this plate,the objeft O to be the reprefentation in perfpedtiveof the portion of a bowl, expofed to the beams ofthe fun ; and the letters c. s. r. t. a frame, or fquareof wood barred and ftrung in even and ftrait linesparallel… … the Hiftory of Chalcography. 109 threads projetfling their fhadows upon the bowl,and the furface where it is fituate. Suppofe now the fame upon the rehevo or mafsitfelf; it is evident, thatthefe threads, in whatevernlanner you interpofe the faid frame betwixt thebowl and the fun, will perpetually…

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Sculptura, or, The history and art of chalcography, and engraving in copper : with an ample enumeration of the most renowned masters and their works : to which is annexed, a new manner of engraving, or mezzotinto (1755)

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