MAGNETIC TAPE CONSIDERATIONS. International Business Machines Corp. 33 min., sd., b&w. Videotape (1 in.) (1410/7010 programming) © International Business Machines Corp.; 9Jun69 (in notice: 1968); MP20205.

MAGNETISM AT WORK. General Electric Co. 12 min., sd., color, 16 mm. © General Electric Co.; 1May70; MP20511.

MAIN MEMORY. See

TAPE CHARACTERISTICS AND MAIN MEMORY.

MAKE THE MOST OF IT (Filmstrip) Chrysler Institute, Marketing Training Dept. Made by Ross Roy, Inc. 53 fr., color, 35 mm. © Chrysler Corp.; 24Apr70; JP12247.

MAKING A DOVETAILED JOINT. McGraw-Hill Book Co. Made by McGraw-Hill Text Films. 4 min., si., color, Super 8 mm. (Sheet metal series: Hand tool operations, set 2) Produced in collaboration with Raybar Technical Films. © McGraw-Hill, Inc.; 31Dec68; MP20335.

MAKING A HOLE WITH THE KNOCKOUT PUNCH. McGraw-Hill Book Co. Made by McGraw-Hill Text-Films. 4 min., si., color, Super 8 mm. (Sheet metal series: Hand tool operations, set 1) Produced in collaboration with Raybar Technical Films. © McGraw-Hill, Inc.; 31Dec68; MP20096.

MAKING A PINATA. Atlantis Productions. 11 min., sd., color, 16 mm. Appl. author: John Simons. © Atlantis Productions, Inc.; 2Jan69; MP20451.

MAKING A SINGLE SEAM. McGraw-Hill Book Co. Made by McGraw-Hill Text-Films. 4 min., si., color, Super 8 mm. (Sheet metal series: Hand tool operations, set 2) Produced in collaboration with Raybar Technical Films. © McGraw-Hill, Inc.; 31Dec69; MP20104.

MAKING HOLES WITH THE SMALL HAND PUNCH. McGraw-Hill Book Co. Made by McGraw-Hill Text-Films. 4 min., si., color, Super 8 mm. (Sheet metal series: Hand tool operations, set 1) Produced in collaboration with Raybar Technical Films. © McGraw-Hill, Inc.; 31Dec68; MP20094.