Macgregor, Dorothy G.2016-04-152016-04-1519481948b14673575(OCoLC)07819446(OCoLC)ocm07819446https://hdl.handle.net/2144/15755Thesis (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