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<p>pt. I. The principles of parallel projecting-line drawing. -- pt. II. Geometrical problems in orthographic projection. -- pt. III. The principles of convergent projecting-line drawing. -- pt. IV. Pictorial effects of illumination
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<br>Subjects: Mechanical drawing</div>
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Adler, Alphonse Andrew, 1881- [from old catalog]</div>
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