NOTE.—The National electric rate book and individual rate hooks for the 48 States, covering the rates charged by publicly and privately owned utilities in communities of 1.000 or more population, are issued in loose-leaf binders. Supplements showing rate changes and now rate schedules are issued in processed form to replace superseded data. Prices are as follows: National electric rate book. $10.00 including binders and Supplement service, for 12 months from date of order: Supplement service thereafter, $7.50 per year. State rate books, $1.00 each, including binder and Supplement services for 12 months: Supplement service thereafter, $1.00 per year.