The carpenter's new guide: being a complete book of lines for carpentry and joinery (1848)
Nicholson, Peter, 1765-1844. [from old catalog], Johnston, William, architect. [from old catalog] · Philadelphia, Grigg, Elliot and co. · leaf 155
PUUe 12. … ^ Fig. E. DESIGNS OF ROOFS. 67 PLATE 42. This roof is calculated for a span of seventy or eighty feet. You will observe in this, and the foregoing roofs, that the trusses are the same in num-ber as the purlines which they have to support; for how absurd it is to give a roof morestrength than…
Carpentry
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