A new and complete dictionary of arts and sciences : comprehending all the branches of useful knowledge, with accurate descriptions as well of the various machines, instruments, tools, figures, and schemes necessary for illustrating them, as of the classes, kinds, preparations, and uses of natural productions, whether animals, vegetables, minerals, fossils, or fluids : together with the kingdoms, provinces, cities, towns, and other remarkable places throughout the world : illustrated with above three hundred copper-plates, engraved by Mr. Jefferys, geographer to His Majesty : the whole extracted from the best authors in all languages (1763)
Society of Arts (Great Britain). Society of Gentlemen, Jefferys, Thomas, d. 1771, Grignion, Charles, 1721-1810, Wale, Samuel, d. 1786, Owen, W. (William), d. 1793 · London : Printed for W. Owen, at Homer's Head, in Fleet-Street · leaf 958
conic-feclions have diametersand axes, the lines cut by thefe are calledordinates, and the interferon of thecurve and diameter, the vertex ; fo incurves of the fecond order, any two pa-rallel lines being drawn fo as to meet thecurve in three points, a right line cuttingthefe parallels fo as that… … lAfrt. V • C O XT 1ST T E IL- C H atc (tRB, Compoxen , Ermine * :4 *- HI!
Art · Science
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