Method VI.
Draw two Lines A F and A C from the given
Point A at Pleaſure, cutting the Baſe Line in the
Points E and B, and interſecting the Geometri-
cal Line in the Points F and C. From theſe
two laſt Points draw the Lines F O and C O to
the Eye; then draw E a through the Point E,
parallel to F O, and B a through the Point B,
parallel to C O, and the Point a the Interſection
of theſe two Lines will be that ſought.
Point A at Pleaſure, cutting the Baſe Line in the
Points E and B, and interſecting the Geometri-
cal Line in the Points F and C. From theſe
two laſt Points draw the Lines F O and C O to
the Eye; then draw E a through the Point E,
parallel to F O, and B a through the Point B,
parallel to C O, and the Point a the Interſection
of theſe two Lines will be that ſought.