HASANABAD (Filmstrip) American Anthropological Assn. 35 fr., color, 35 mm. © American Anthropological Assn.; 12Aug68; JP12497.

HATCHERIES AND TRANSPLANTING FISH--CONSERVATION. Troll Associates. 4 min., si., color, Super 8 mm. Loop film. © Troll Associates; 16Jan70; MP20673.

THE HAUNTED CASTLE. See

GENTLE BEN.

HAWKS. Troll Associates. 4 min., si., color, Super 8 mm. Loop film. © Troll Associates; 16Jan70; MP20738.

THE HEADLESS HORSEMAN AND ICHABOD CRANE (Filmstrip) Troll Associates. 41 fr., color, 55 mm. (American folk heroes and tall tales) A tale by Washington Irving; Illustrator, Richard Bresnan. © Troll Associates; 8Jan70; A166485.

HEART RESPONSES TO STIMULI. See

PROPERTIES OF CARDIAC MUSCLE.

HEARTBEAT OF A VOLCANO. Encyclopaedia Britannica Educational Corp. 21 min., sd., color, 16 mm. (AGI-EBEC earth science film series) Produced in cooperation with American Geological Institute. © Encyclopaedia Britannica Educational Corp.; 13May70; MP20769.

HEARTS. Office du Film du Quebec. Released by Columbia Pictures Industries. 17 min., sd., color, 35 mm. © Office du Film du Quebec; 1Mar70 (in notice: 1968); MP20794.