THE INDUSTRIAL CITY. Encyclopaedia Britannica Educational Corp. 16 min., sd., color, 16 mm. © Encyclopaedia Britannica Educational Corp.; 20Jan70 (in notice: 1969); MP20236.

INDUSTRIAL HYGIENE--SCIENCE OF SURVIVAL. Xerox Corp. Made by Holland-Wegman Productions, division of Niagara Frontier Services. 9 min., sd., color, 16 mm. © Xerox Corp.; 9May69; MP19779.

THE INDUSTRIAL REVOLUTION. See

WORLD HISTORY ENRICHMENT SERIES.

THE INDUSTRIAL WORKER. Encyclopaedia Britannica Educational Corp. 17 min., sd., color, 16 mm. © Encyclopaedia Britannica Educational Corp.; 5Apr70 (in notice: 1969); MP20525.

INDUSTRY AND TRADE. See

SEEING ARGENTINA, PARAGUAY AND URUGUAY.

INDUSTRY, MINING AND TRADE. See

SEEING THE ANDES COUNTRIES.

INGUINAL CANAL, SPERMATIC CORD AND TESTES. Teaching Films. 16 min., sd., color, 16 mm. (Guides to dissection) © Teaching Films, Inc., Division of A-V Corp.; 18May70; MU8178.