Tunnicliff, Mary Raymonda2016-10-202016-10-2019471947b14711448(OCoLC)7858637https://hdl.handle.net/2144/18438Thesis (M.S.)--Boston University, 1947. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsThesis/Dissertation