Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 74
en wetted and smoothed,being then free from grit or sediment, and has a musky smell. DRAWING INSTRUMENTS. 5^ Slabs of many forms and different materials are used in grinding down theink. The one shown in Fig. 155 is a square slab of slate, with a countersunkcircular recess and a well in the centre… … Fig. 155. a narrow strip of paper, dipped in the ink and inserted between the blades. India ink and ink of various colours can be purchased in bottles, and thisanswers very satisfactorily for most work. Waterproof ink, which admits ofbeing washed over, can be bought in sticks or in bottles. It is…
Mechanical drawing
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