176’ RECTANGLE PLAN OF DIAGONAL SYMMETRY. TAKE THE DIAGONALS OF FOUR IN FOUR DIVISIONS. THEN BY A CONCENTRIC CIRCUMFERENCE. SET OUT THE ROSETTE. THERE ARE, IN FACT, THREE ROSETTES OF TEN POINTS EQUAL AND TANGENT.
177 LOZENGE PLAN, WITH COMBINING LINES A CONCENTRIC CIRCUMFERENCE DESCRIBES A STAR THE ROSETTE IS THEN DRAWN. THEN GRADUALLY, BY THE AID OF THE PENTAGONAL ADJUSTMENT, THE NET-WORK IS DESCRIBED.
178 LOZENGE PLAN, WHERE THE GREAT AXIS IS THREE TIMES THAT OF THE LESSER AXIS. SUB-DIVIDE AS IN PLAN. TRACE CIRCUMFERENCES EQUAL AND TANGENT, IN WHICH ARE INSCRIBED REGULAR PENTAGONS. THE REST IS EASILY FOLLOWED. THE NET-WORK IS COMPOSED OF FIVE SERIES OF LINES.