JOURNAL OF POLYMER SCIENCE VOL. XXV, ISSUE NO. 111 (1957)

ERRATA

Degradation of Addition Polymers by Ultrasonic Waves

(J . Polymer Sci., 22,535-548, 1956)

by M. A. K. MOSTAFA

Department of Natural Philosophy, Royal Technical College, Glasgow, Scotland

The summation of the series in the Appendix should read: a - r - 1 2 2(r - 1)(1 - p-1) (2 - p ) - r(1 - p ) - p r - 1

p y 1 - p)Z

(2 - p ) - r(1 - p ) - pr-’ p r y 1 - p)Z

c - ( r - s) = + 2 4 - 1 Pr-V - PI

c - ( r - s - l ) = - + , a = l p’ v-lo - PI

a = r - l 1 (r - 2)(1 - p7-1)

8-7-1 1 r(1 - @-I) c - ( 7 - s + 1 ) = + a - 1 p’ P ‘ W - P)

(2 - p ) - r(1 - p ) - v-1

p r y 1 - p)Z

The Dose Rate Dependence of Kel-F Degradation by Ionizing Radiation

( J . Polymer Sci., 25,253-256, 1957)

by JEROME GOODMAN and JOHN H. COLEMAN

Radiation Research Corporation, New York 22, New York

In the last paragraph of the text on page 255, the first sentence enclosed

In the same paragraph, four lines from the bottom, change “viscosity” in parentheses should be followed by a superscript “4.”

to “intensity.”

502