Abstract :
Mr. R.W. Armstrong has brought to the attention of the editorial staff of the PROCEEDINGS a number of corrections to his paper "Polyphase Rectification Special Connections" which appeared on Page 78 of the January, 1931, issue of the PROCEEDINGS. They regard statements, tables and figures found on pages 81, 89, 94, and 95 of the original paper. The author, Mr. R. Bechmann, makes the following correction to the above paper, which appeared in the March, 1931, issue of the PROCEEDINGS. On page 461, footnote 1 should read: B. van der Pol, Jr., Jahrbuch der drahtl. Telegr., 13, 217, 1917.