Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 456
e surrounding slopes a reservoir of 300 acres area, at an elevation of about 8,000 ft. above sea-level. It rests upon solid rock foundations, and is built of round tamarack logs from 2 to 3 ft, indiameter, formed into cribs about 8 ft. square, pinned together by wooden treenails. The water-faceis… … 436 MINING, HYDRAULIC. charge-gates arc placed, through which the water flows from the various levels of the reservoir intothe head of the supplv-ditch/ Pine dams, constructed on the same plan and about the same time, havelong since decayed and broken down, or been replaced by hard-wood dams such…
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