Card, Linwood Robinson2016-10-312016-10-3119481948b14666911(OCoLC)07815016(OCoLC)ocm07815016https://hdl.handle.net/2144/18919Thesis (Ed.M.)--Boston University, 1948. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsSex differences in history and geography achievement in grades five and sevenThesis/Dissertation