Babbitt, Arthur B. (Arthur Bradford), b. 1873 · New York, H. Holt and company · leaf 98
, draw semicircles with a U^ radius abovethe horizontal line. Below the horizontal line drawsemicircles about points E and G, using a f radius. k k EXTRA PLATE Draw a Ih square in the center of the sheet, andwork out one of the figures shown on page 87. Thecenters for the arcs are determined by… … No. a.
Mechanical drawing
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