Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 383
Fig. ] line shows black; the time required to obtain thedesired result depends entirely on the amount ofwater used. The ink should be kept free of dustand prevented from evaporating by covering it witha flat plate of some kind. … Fig. 589.
Mechanical drawing · Machine design
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