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 674
teft num-ber erf the interval has units; thus thefifth being 2:3, the line is divided into c A f j B three parts : of thefe take as many as thelelTer number a — A C, then is A C thepart fought; that is, two lines wholelengths are to each other as A B to A C,make a fifth. Hence if it he required… … Che vron .
Art · Science
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
