Correction

THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER 1 9 5 5 I CORRECTION A. Uhlir, Jr., author of the paper The Potentials of Infinite Systems of Sources and Numerical Problems in Semiconductor Engineering, which appeared in the January, 1955, issue of the B.S.T.J., pages 105 to 128, has brought the following corrections to the attention of the editors. In the last text sentence on page 107, for Q read P. On page 124, equation (37) contains the term , sinh irX/k This term should be - 2 In sinh irK/k 2ir/k