The carpenter's new guide: being a complete book of lines for carpentry and joinery (1850)
Nicholson, Peter, 1765-1844. [from old catalog], Johnston, William, architect. [from old catalog] · Philadelphia, Lippincott, Grambo and co. · leaf 91
CRADLING TO GROINS. 37 PLATE 25. To describe the intersecting or Angle Ribs of a Groin standiiig upon an octagon Plan, theSide and Body Ribs being given both to the same Height. Fig. 1. £ is a given body rib, wiiich may be either a semicircle or a semi-ellipsis, and^ is a side rib given of the same…
Carpentry
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