Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 742
ed to surveyswith records of angles and topographical views of lines. Views of buildings,circulars of machinery, and objects on sale or of interest are illustrated by theaid of photography. The figure below represents the office of the publishersof this work taken by photography, printed on plain… … FREE-HAND DRAWING. A DRAUGHTSMAN^, who has made himself conversant with the rules of pro-jection as laid down in the preceding pages, and has applied these rules to prac-tice, will be capable of representing correctly such objects as have been illus-trated, or make up similar combinations of his…
Mechanical drawing
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