Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 48
ns is well plastered with hydraulic mortar. The exterior masonryof both the bridges is of well-hammered stone. Throughout the structure hydraulic mortar was used.For the distance of aqueduct between the bridges and back of them to the side-hills, the rock bottomwas prepared with steps, and a…
Mechanical engineering
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
