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/10217/180103https://doi.org/10.25675/3.025246To 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