Elements of lettering ... A treatise on the history, classification, and practical application of the various styles of letters of the alphabet (1899)
International Correspondence Schools · Scranton, The Colliery engineer company · leaf 68
rs. Fig. 68 54 ELEMENTS OF LETTERING. 1 Every diameter is equal to two radii, and divides the circleinto two equal parts, or semicircles, and the circumference intotwo semi-circumferences. Two diameters, perpendicular to each other as A B and CD,divide the circumference into four equal parts called… … 113. A Circular Arc.—A circulararc is any part of a circumference.Circular arcs having the same center,but different radii, are called parallel arcs.They are inside one another. They arealso called concentric, which means with the same center. OKNAMEXTAL CURVES. 114. An Ogee.—An ogee is a line…
Lettering
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