THE MERCENARY. See
THE FBI.
MERCURY 7: FLIGHT OF ALAN SHEPARD. Thorne Films. 5 min., sd., color, Super 8 mm. (The 8 mm. documents project, no. 303) NM: compilation & revision. © Thorne Films, Inc.; 1Oct69; MP20225.
MERCURY 13: FLIGHT OF JOHN GLENN. Thorne Films. 5 min., sd., color, Super 8 mm. (The 8 mm. documents project, no. 304) NM: compilation & revision. © Thorne Films, Inc.; 1Oct69: MP20226.
THE MESSENGER. See
THE FBI.
THE METALLIC AND NON-METALLIC MINERALS. See
USING NATURAL RESOURCES.
METEORS, COMETS AND ASTEROIDS. See
ASTRONOMY: THE SOLAR SYSTEM AND BEYOND.