Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 27
2 2 ELEMENTS OF MECHANICAL DRAWING. LESSON VIII. EXERCISE WITH RULER AND COMPASSES. — C^;//2«2/^^. Note. — These exercises are not given in the form of or as problems in geometry,but as exercises with ruler and compasses. They should be drawn on six-inch hori-zontal lines. Exercise 3. — Draw… … Fig. 33. Fig. 34. Fig. 35. Exercise 4. — Divide a circle into any number of parts which shallbe equal to each other in area and perimeter (Fig. 34). The curvesin this exercise are all half circles drawn on opposite sides of the line. Exercise 5. — Produce a spiral on a horizontal diameter by…
Mechanical drawing
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