Fernald, Roy Lynde2017-01-122017-01-1219311931b14756626(OCoLC)07898633(OCoLC)ocm07898633https://hdl.handle.net/2144/19920Dissertation (Ph.D.)--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