DIRECTIONS.

AUSTRALOPITHECUS, EAST AFRICA, AND SUMMARY OF AUSTRALOPITHECINES. See

THE EVOLUTION OF MAN.

AUTOBIOGRAPHY OF A TOOTH. See

THE MOUTH I LIVE IN, AUTOBIOGRAPHY OF A TOOTH.

AUTOCODER. International Business Machines Corp. 2 motion pictures, sd., b&w. Videotape (1 in.) (1410/7010 programming) Contents: Pt.: 1. 33 min.--2. 44 min. © International Business Machines Corp.; 9Jun69 (in notices: 1968); MP20214-20215.

THE AUTOMATIC BALANCE SARTORIUS 2400. John Wiley & Sons. 4 min., sd., color, Super 8 mm. Loop film. Appl. author: Wendell H. Slabaugh. Appl. ti.: The sartorius balance 2400. © John Wiley & Sons, Inc.; 18Jul69; MP20471.

AUTOMOTIVE TECHNICIAN (Filmstrip) Jam Handy School Service. 5 filmstrips, color, 35 mm. Contents: 1-5: The 4-stroke-cycle internal combustion engine. 47 fr.--Engine components. 53 fr.--Valve mechanism and the 2-stroke cycle. 37 fr.--The fuel system. 48 fr.--The lubricating and cooling systems. 53 fr. © Jam Handy School Service, Inc.; 29May69; JP12038.

AUTOMOTIVE TECHNOLOGY. See

BATTERY SERVICE.