Thyng, Marguerite Marie2016-08-082016-08-0819311931b147153997861753https://hdl.handle.net/2144/17496Thesis (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 restrictionsBiology of the popular magazinesThesis/Dissertation