Pollard, William F.2016-10-312016-10-3119471947b14821850(OCoLC)08038573(OCoLC)ocm08038573https://hdl.handle.net/2144/18905Thesis (M.A.)--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