Frolio, Samuel Francis2017-01-122017-01-1219311931b14714528(OCoLC)7860184https://hdl.handle.net/2144/19926Thesis (Ed.M.)--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 restrictionsImprovement of the teaching of general science in the junior high schoolThesis/Dissertation