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Chapter I
Radial Line Development
TOPICS INVOLVED
-Divisions and numbers
-True lengths
-Central ball theorem

Chapter II
Triangulation
TOPICS INVOLVED
-Triangulation theorem
-Determining the bend lines
-Square to round on the parallel planes (centrally placed)
-Square to square on parallel lines (centrally placed)

Chapter III
Parallel line development
TOPICS INVOLVED
-Pipe with a cut
-division and numbers
.