Contributions of instructional films to the teaching of high school science 
By: [by] Oreon Keeslar ...
Published: 1946
Place of publication: [n.p
Language: eng
Subjects: Science -- Study and teaching.; Motion pictures in education.
Other titles: The elements of scientific method.
Notes: Bibliography: pt. 1, p. 11. "References": pt. 2, p. 278.
Thesis (Ph. D.)--University of Michigan, 1945.
Caption title.
Part one reprinted from Science education, v. 30, no. 2-3, March-April, 1946. Part two, based on chapter two of original type-written thesis, and reprinted from Science education, v. 29, no. 5, December, 1945, has title: The elements of scientific method.