London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 379
139 After removing tlie angles of the masonry, as shown in thediagram fg. Ho., and replacing the weights as before, the ft A A 3 358 Principles of Cunslrtiction 140 (-1 A Hi 1 ,-■ 1 •■. .---• 1 1 1 ■■.. 1 \ 1 1 1 \ 1 ^. ! 1 ]-•- 1 1 1 i 1 I … arch and pier had just sufficient strength to supjx)rt 14 lb.Again, with reference ioJig. 139., when the masonry was carriedup to the dotted Hne a Z>, the arch and jiier balanced under theweight of 3 lb., placed over the crown at I; whereas, asshown in tlie third experiment, relative ^o Jig.…
Architecture
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