Johns, Richard James, authorBetts, Gilbert L. (Gilbert Lee), 1893-1972, advisorWetzel, C. L., committee memberAvery, George T., committee memberCraigo, R. T., committee member2017-04-102017-04-101941http://hdl.handle.net/10217/180103To view the abstract, please see the full text of the document.masters thesesengCopyright 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.Technical education -- CanadaText