JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (Registered in U.
S. P a t e n t
Office)
(0Copyright, 1963, by t h e American Cherniral
Societv)
PHYSICAL A N D INORGANIC C H E M I S T R I ' C ( l N ' I ' R I F l U r 1 O N FROM TIIE PLASTICS DEPARTMEST AND THE INDUSTRIAL AND BIOCHEXICALS ~ ~ ) E P A R T 1 I R1'U , ~ S I ' F R I I I F VI'AI, STATIOS, L'. DU F O N T D E NEMOURS AND CO., I N C . , \\rII,MISGTO?I, r)ELA\f'ARI-stallitc. s i x a i i t l "gl.;ililiitiz~ttiiiii index" \$ere iiintlc froiii ~liffr~ictotncierscaii\. M.itli a scanning sl)ecd of 1" uiiiniite, a charL speed r i f ciii. 'liour, and 1" (divcrgencc) slit.;, r r c , d e t l reflecti~~iisc~iultl l)e planinietered t e satisfactor>.reprciducil)ilit~.
\ l J Unordered layer structure a f t e r J. Biscoe a n d B. E. Warren, P h y s . , 13, .'iN (1942). ( 2 ) 'To whrrrn all inquiries should he directed a t Engineering- Research I.aboratc,iy, Experimental Station, E. I. d u I'ont d e Nemours and Cm, I n c . , Wilmington, I3elaware. ( 3 ) R . S. Pease, .4
