London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 433
f the piers of these two arches,by making their bases 6 in. by 6 in., and placing them upon thesame, the balancing heights were found to be, — E E 2 412 Principles of Construction For the Gothic arch^g. 15s., 96 in. For the Roman arch Jig. 154., 72 in. The balancing heights of the Gothic and Roman… … may therefore be considered as a proof of the correctness ofthe lateral forces. The lateral forces o^Jigs. 147. and 148. are in the proportionof 9 in. to 7 in. The lateral forces of fgs. 149. and 150. are in the proportionof 12 in. to 9 in. The lateral forces of^gs. 151. and 152. are in the…
Architecture
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