Roy G. Neville

Aerospace Corporation, Los Angeles, Calif.

John J. Mcgee

Aerospace Corporation, Los Angeles, Calif.

Constance Wright

Central Research Department, Experimental Station, E. I. du Pont de Nemours & Company, Wilmington, Del.

Earl L. Muetterties

Central Research Department, Experimental Station, E. I. du Pont de Nemours & Company, Wilmington, Del.

Henry F. Holtzlaw Jr.

University of Nebraska