The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 71
2, &c., parallel to ml; from each point of division in da, draw lines to I; then a curve traced through the points otintersection, o, o and o, will be that of a parabola. 127, a.—Another method. Let m /, (Fig. 93,) be the axis andheight, and d d the base. Extend m Z, and make I a equal to ini;…
Carpentry · Architecture
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