O'Gara, Mary Elizabeth2016-10-312016-10-3119471947b14711424(OCoLC)7858627https://hdl.handle.net/2144/18829Thesis (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