TechnologyTunneling Under DifficultiesPart of the Delaware Aqueduct Was Drilled at Great Depths, Yet Was Finished in Half the Allowed TimeBy R. G. Skerrett on November 1, 1942AdvertisementABOUT THE AUTHOR(S)Recent Articles by R. G. SkerrettFidgety Atoms Purify WaterWater for our Greatest CityUnder Mohile River