Sheffield, Gertrude Jordan2013-06-282013-06-2819511951b1471226xhttps://hdl.handle.net/2144/5940Thesis (M.S.)--Boston University PLEASE NOTE: (1) Pages 82, 83, 84 of the thesis are combined into a single page (p.89 of the file); (2) Page 107 appears to be missing from the thesis. Our determination is that this is the result of misnumbering by the author, and no substantive content is actually missing. If you are able to determine otherwise, please contact us.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsThesis/Dissertation