Motion pictures, January-June 1973

by Library of Congress. Copyright Office

What does air do? Troll Associates. Made by the Lunaflick Company, Ltd. 4 min., si., color, Super 8 mm., in cartridge. © Troll Associates; 18Apr73; MP24499.

MP24500.

Things in air affect us. Troll Associates. Made by the Lunaflick Company, Ltd. 4 min., si., color, Super 8 mm., in cartridge. © Troll Associates; 18Apr73; MP24500.

MP24501.

What is temperature? Troll Associates. Made by the Lunaflick Company, Ltd. 4 min., si., color, Super 8 mm., in cartridge. © Troll Associates; 18Apr73; MP24501.

MP24502.

How a thermometer works. Troll Associates. Made by the Lunaflick Company, Ltd. 4 min., si., color, Super 8 mm., in cartridge. © Troll Associates; 18Apr73; MP24502.

MP24503.

How does heat travel? Troll Associates. Made by Lunaflick Company, Ltd. 4 min., si., color, Super 8 mm., in cartridge. © Troll Associates; 18Apr73; MP24503.

MP24504.