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A text book of geometrical drawing : abridged from the octavo edition : for the use of schools in which the definitions and rules of geometry are familiarly explained, the practical problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible : with an introduction to isometrical drawing : and an essay on linear perspective and shadows ... (1849)

Minifie, William, 1805-1880 · Baltimore : Wm. Minifie & Co. · leaf 23

An illustration from A text book of geometrical drawing : abridged from the octavo edition : for the use of schools in which the definitions and rules of geometry are familiarly explained, the practical problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible : with an introduction to isometrical drawing : and an essay on linear perspective and shadows ..., 1849, leaf 23
f is a horizontal or level line;lines so called are always perpendicular to a plumb line. 11. Vertical and Horizontal Lines are alwaysperpendicular to each other, but perpendicular lines arenot always vertical and horizontal; they may be at anyinclination to the horizon provided that the angles… … QVJiBRILATEllALS,QTJADBAN&LES OR TETRAGOlffSPAMALLELOItRMIS , W ^0 BECTANGLES r^j m 1=^-

Mechanical drawing · Geometry, Descriptive · Perspective

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More pictures from A text book of geometrical drawing : abridged from the octavo edition : for the use of schools in which the definitions and rules of geometry are familiarly explained, the practical problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible : with an introduction to isometrical drawing : and an essay on linear perspective and shadows ...

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