Foster, Perley Addison2017-01-122017-01-1219311931b14746906(OCoLC)07887029(OCoLC)ocm07887029https://hdl.handle.net/2144/20018Thesis (M.A.)--Boston University, 1931. 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