The British drawing-book : or, the art of drawing with accuracy and beauty, containing a series of progressive lessons on drawing landscape scenery, marine views, architecture, animals, the human figure, &c. &c. also, a complete system of practical perspective, illustrated with numerous practical subjects (1845)
Whittock, N. (Nathaniel), 1791-1860 · London : Published for the proprietor · leaf 146
ve directed the learner to copy thedrawings placed before him. This lesson will enable him to form arches of any shape and size for himself. No. 1, is an equilateral arch. To produce this arch, form a triangle, and place one foot of the compassesin the angle on the base line, and extend the other… … Plate 43. PROGRESSIVE DRAWING-BOOK. 57 No. 2, is a lancet arch. This is drawn, of any size or shape, by placing a point on the base line, uponwhich place one foot of the compasses, and extend the other to the extent of the opening required for thespringing of the arch : from this point draw a curve…
Drawing
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