A new index of A. I. E. E. transactions

A new volume of the Index to the TRANSACTIONS, Volume 3, has just been completed, and includes the titles of all papers printed in the TRANSACTIONS of the A. I. E. E. from January 1, 1911 to January 1, 1922. The new volume corresponds in size with the two previous ones and completes the index of the TRANSACTIONS up to 1922, at which time the size of the annual volume was changed to 9 in. by 12 in. size.