Motion pictures and filmstrips, January-June 1970

by Library of Congress. Copyright Office

WATER -- CLEAR AND OTHERWISE. See

ENVIRONMENT OF MAN.

WATER POLLUTION: CAN WE KEEP OUR WATER CLEAN? Journal Films. 12 min., sd., color, 16 mm. Appl. author: Mrs. Reinald Werrenrath, Jr. © Reinald Werrenrath, Jr.; 15Oct70; MP20936.

WAVES AND PULSES (Filmstrip) No. 683. Popular Science Audio-Visuals. 42 fr., color, 35 mm. (A Physics release) With Filmstrip guide, 5 p. © Popular Science Audio-Visuals, Inc.; 5Jan70; A196126.

WE DISCOVER EQUIVALENT FRACTIONS. Coronet Instructional Films. 13 min., sd., b&w, 16 mm. © Coronet Instructional Films, a division of Esquire, Inc.; 16Jul70; MP20912.

WE DISCOVER FRACTIONS. Coronet Instructional Films. 11 min., sd., b&w, 16 mm. 2d ed. © Coronet Instructional Films, a division of Esquire, Inc.; 1Jun70; MP20904.

WE DO, WE DO. Saint Francis Productions. 12 min., sd., color, 16 mm. A Teleketics presentation. © Saint Francis Productions; 1Sep70; MP20833.

WE GO TO SCHOOL. Coronet Instructional Films. 11 min., sd., b&w, 16 mm. 2d ed. © Coronet Instructional Films, a division of Esquire, Inc.; 1Jul70; MP20907.

WE THE PEOPLE. Aerojet-General Corp. 10 min., sd., color, 16 mm. © Aerojet-General Corp.; 29Jul69; LP38119.

WE USE THE NUMBER LINE. Coronet Instructional Films. 10 min., sd., b&w, 16 mm. © Coronet Instructional Films, a division of Esquire, Inc.; 1Jun70; MP20903.