IROQUOIS, PEOPLE OF THE LONGHOUSE (Filmstrip) Troll Associates. 43 fr., color, 35 mm. (American Indians and how they really lived) Author, Dana Todd; illustrator, Kenneth Barr. © Troll Associates; 8Jan70; A166454.

IRRIGATION (Filmstrip) Troll Associates. 41 fr., color, 35 mm. (Conservation, saving our environment) Author, Dana Todd; illustrator, Virginia Barton. © Troll Associates; 26Jan70; A166418.

IS THERE ANY MAN HERE. See BONANZA.

IS THERE LIFE ON EARTH. See

ENVIRONMENT OF MAN.

ISLE OF CAPRICE. Mirisch-DePatie-Freleng. Released by United Artists Corp. 7 min., sd., color, 35 mm. © Mirisch-D-F; 18Dec69; LP38127.

ISOLATION OF THE CARDIAC PACEMAKER. See

PROPERTIES OF CARDIAC MUSCLE.

ISRAEL: THE LAND AND THE PEOPLE. Coronet Instructional Films. 14 min., sd., b&w, 16 mm. © Coronet Instructional Films, a division of Esquire, Inc.; 1May70; MP20855.

IT'S A SMALL WORLD. See