Rawson, Ernest J., authorHinderman, Roy Aaron, 1900-, advisorHenry, George F., committee memberBritton, Russell K., committee member2019-07-052019-07-051944https://hdl.handle.net/10217/195663Covers not scanned.To 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.Peru State Teachers CollegeText