Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 185
this kind, {Fig. 216,) pa-rallel to each other, are to be placed one on each side of the open-ing in the top of the dome. Upon these the whole framework is todepend for support, and their strength must be calculated accord-ingly. (See the first part of this section, and Art. 286.) If thedome is… … Fig. 2ia
Carpentry · Architecture
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