This section is from the book "The American House Carpenter", by R. G. Hatfield. Also available from Amazon: The American House Carpenter.
At any convenient place in be (Fig. 92), as 0, draw m n at right angles to be; from 0, tangical to bh, describe a semicircle, cutting b e in s; join m and s and n and s; then these lines will form at s the proper angle for bevilling the top of the hip-rafter.
DOMES.+
 
Continue to: