pH METER. Harper & Row, Publishers. Made by Old Pueblo Films. 5 min., si., color, Super 8 mm. Loop film. Appl. authors: Rod O'Connor & Bruce Fowler. © Harper & Row, Publishers, Inc.; 1Jul70; MP23853.

PHILADELPHIA, PENNSYLVANIA. See

FRIENDS. Episode no. 75.

THE PHILADELPHIA STORY. See

THAT GIRL. No. 32.

PHOENIX. See

GUNSMOKE.

PHOTOSYNTHESIS: EFFECT OF TEMPERATURE. Thorne Films. 4 min., sd., color, Super 8 mm. Loop film. © Thorne Films, Inc.; 1Sep72; MP23578.

PHYSICAL EXAMINATION. See

URINALYSIS: PHYSICAL EXAMINATION.