Credits: Author-photographer, Ross E. Hutchins.
© Imperial Film Co., Inc.; 21Dec70; JP12823-JP12827.
HOW IS IT THAT AN ENGLISHMAN SPEAKS ENGLISH. See
LANGUAGE: THE MIRROR OF MAN'S GROWTH.
HOW LEVERS HELP US. Coronet Instructional Films. 11 min., sd., b&w, 16 mm.
Credits: Educational collaborator, Clarence R. Trexler.
© Coronet Instructional Films, a division of Esquire, Inc.; 2Nov70; MP21360.
HOW LIVING THINGS CHANGE. See
MACMILLAN ELEMENTARY SCIENCE FILMSTRIPS.
HOW RAMPS HELP US. Coronet Instructional Films. 10 min., sd., b&w, 16 mm.