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Scientific American, Vol. 98, No. 23 (June 1908) (1908)

leaf 5

An illustration from Scientific American, Vol. 98, No. 23 (June 1908), 1908, leaf 5
ived at the reduction plant in Jamaica ness both the amount of work already completed on small lake, about two square miles in area, with a Bay contains 71 per cent water, 6 per cent rubbish, 20 surface elevation of 55 feet, will be formed on the the canal and the steadily growing rate of In- per… … legs, derrick, boiler, winch, DIAGBAM SHOWING EXCAVATION DURING EACH MONTH AT PANAMA BY STEAM DREDGES that year. In 1906 the etc., for raising the 160- AND SHOVELS SINCE AMEBICAN OCCUPATION. monthly excavation for the ton Rammerhead crane at first time passed the half valley of the Rio Grande being…

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