Hayden, Ruth Rodman2014-12-152014-12-1519411941b1478659xhttps://archive.org/details/ermaatperkinsins00haydhttps://hdl.handle.net/2144/9936Thesis (M.A.)--Boston Universityen-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.Erma at the Perkins Institution and the Massachusetts School for the blind.Thesis/Dissertation