Rohwer, Carl, authorLeatherwood, Frank N., authorColorado A & M College, publisher2017-09-292017-09-291952-08-01https://hdl.handle.net/10217/184168CER 53CR1.August 1, 1952.Includes bibliographical references.At head of title: U.S. Department of Agriculture, Soil Conservation Service.reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Irrigation engineeringWellhead protectionEffect of well screens and gravel envelopes on flow of sand into wells: progress report on the performance of well screensProgress report on the performance of well screensText