Free-hand drawing : a manual for teachers and students (1898)
Cross, Anson K. (Anson Kent), 1862-1944 · Boston : Ginn & Company · leaf 64
h vertical and horizontallines. A horizontal line whose ends are equidistant from the eyeappears horizontal, and is represented by a horizontal line. A ver-tical line appears vertical, and is always represented by a vertical line.If a ruler is held horizontal, with its ends equally distant from the… … Fig. 15. TESTS. 47 A thread with a weight attached serves as a plumb-line. Byholding the plumb-line in front of the object, the lines of the objectmay be compared with the vertical. The thread may also be used,and is often better than the ruler or pencil, for the horizontal line, asit hides none of…
Drawing
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