A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 92
n n innn … imediately following the title page. ^oj^jTsyyr/TJ-c cz^ss yy9-f339. § 13 GEOMETRICAL DRAWING 67 base of the cylinder in the plan into any number of parts, inthis case 24, and through the points of division A, B, C, etc.draw the radii OA, OB, O C, etc. to the center O. Drawalso from these points…