00739cam a22002291  4500001001300000003000400013005001700017008004100034010001700075035001900092040005500111042001200166050002000178110006500198245003200263260005100295300001700346610006500363650002700428650003700455999001700492e  38000121 DLC20260227111227.0760220s1937    nyu           000 0 eng c  ae  38000121   a(OCoLC)2002947  aUnited States. Off. of Educ. Library.cGUdGUdDLC  apremarc00aLD7501.N5bH7232 aColumbia University.bTeachers College.bHorace Mann School.10aHorace Mann after 50 years.  aNew York,bHorace Mann School for Boys,c1937.  a74 p.c20cm.20aColumbia University.bTeachers College.bHorace Mann School. 0aEducationxPhilosophy. 0aEducationxExperimental methods.  c21585d21585