Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 69
will reachalso to C as shown by the dotted line e C f. « o: <0 ^^^ ^^^ •s^ /^ X. (1> / /j ^ \ J» / ^ 1 \ « 1 ^^ 1 \ ^ 1 / / \ s / / / 1 \ / \ <0 1 / / 1 \ / 1 *^ / *^ ^\ / Q ^ K. ^ \\ 1 ^1 \ V / ^ S \ rs. f \ / \ 1 ^(^ \ \ ^ Q) / ^ 3 y^ ^ k ^5 •c> ►<. ^ c C y^ \ 7 th ^ ^ ^\/ \ ^V^ /… … §1 GEOMETRICAL DRAWING 55 Now, by inserting the point of a pencil under this threadand moving it from A to B, at the same time keeping thethread taut, one-half of the required ellipse will be described.The other half may be similarly described on the oppositeside of the longitudinal axis. Problem…
