Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 417
. Timber shores were extended from the foundation to the dam, before the intermediate sectionsof earth were removed. In like manner the rear work of the masonry on the foundation was at first laid in secti cs, ar_ubraces extended from it to secure the dam. The thrust upon these braces at one time… … ^w>i>rm-rH7? ^ -J 33/ iwr
Mechanical engineering · Mechanics · Engineering
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