CIRCULATION (Filmstrip) No. 207. Popular Science Audio-Visuals. 44 fr., color, 35 mm. (A Science release) With Filmstrip guide, 5 p. Appl. ti.: The circulatory system. © Popular Science Audio-Visuals, Inc.; 6Apr70; A196132.

THE CITIES (Filmstrip) New York Times Book & Educational Division. 5 filmstrips, color, 35 mm. With kit. Contents: Part 1-5: Living. 73 fr.--Working. 69 fr.--Schools. 73 fr.--Leisure. 66 fr.--The citizen. 71 fr. © New York Times Co.; 13Oct70; A189596.

CITIZEN. See

THE CITIES.

CITY AND HOW IT GREW. See

WASHINGTON, D.C.

THE CITY IN U.S. HISTORY (Filmstrip) No. 9011. Popular Science Audio-Visuals. 43 fr., color, 35 mm. (A Social studies release) With Filmstrip guide, 5 p. © Popular Science Audio-Visuals, Inc.; 6Oct69; A196096.

CITY OF THE ELEPHANTS. See

AFRICAN FOLK TALES.

CITY PROTECTION AND WELFARE SERVICES. McGraw-Hill Films. 10 min., sd., color, 16 mm. (City-state-federal government series) Produced by McGraw-Hill Text-Films in collaboration with Vision Associates. Appl. author: McGraw-Hill Book Co. © McGraw-Hill, Inc.; 1Jul70; MP20654.