Cowan, Margaret Eleanor2016-10-202016-10-2019481948b14791195(OCoLC)07964729(OCoLC)ocm07964729https://hdl.handle.net/2144/18445Thesis (M.A.)--Boston University, 1948. 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