Motion pictures, January-June 1973

by Library of Congress. Copyright Office

CBS REPORTS.

PROPERTIES OF PROTEINOID MICROSPHERES. Harper & Row, Publishers. 1 reel, si., color, Super 8 mm. (The Origin of life, pt. 4) Loop film. Appl. author: Sidney W. Fox. © Harper & Row, Publishers, Inc.; 1May72; MP23384.

[PRO-TEL PRODUCTS TELEVISION COMMERCIALS] Pro-Tel Products. Approx. 1 min. each, sd., color, 16 mm. © Pro-Tel Products, Inc.

Permabond. PR 18. 30 sec. © 15Sep72; MP23513.

Permabond. PR 20. 30 sec. © 15Sep72; MP23514.

Wonder tumblers. © 15Aug72; MP23512.

PROTHROMBIN TIME. See

INVESTIGATION OF THE BLEEDING PATIENT.

THE PROTRACTOR. Clear-Vue Film Corp. Released by Thorne Films. 4 min., si., color, Super 8 mm. Loop film. © Clear-Vue Film Corp.; 15Dec72; MP23708.

PROVIDENCE, RHODE ISLAND. See