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 46
hich the water drains is well plastered with hydraulic mortar. The exterior masonryof both the bridges is of well-hammered stone. Throughout the structure hydraulic mortar was usedFor the distance of aqueduct between the bridges and back of them to the side-hills, the rock bottomwas prepared with…
Mechanical engineering · Mechanics · Engineering
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