The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 149
difierent radii, as at Fig. 163 and 164, which re-semble the elliptical curve. The ovolo and cavetto are generallya quadrant, but often less. When they are less, as at Fig. 167,the centre is found thus : join the extremities, a and 6, and bisectahin c ; from c, and at right angles to a b, draw c…
Carpentry · Architecture
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