London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 378
are theresults: — Relative tojf^. 139. Weight _„i_ °i^. Courses Weight Weight TotalWeight of the Num- above the of Bricks placed Superstruc- Observations. bers, asunder. Crow n of the above the on the ture, and the Arch. Arch. Bricks. Weight onthe Bricks. 2 S courses. 31 lb. 6 lb 9ilb. The arch… … 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
Architecture
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