Second Class
Includes unsealed newspapers and other periodical publications bearing notice of entry as second class matter, when mailed by the public.
Rate: One cent for each four ounces or fraction; full prepayment required. No limit of weight. Third Class. Includes unsealed books, newspapers and periodicals not admitted to the second class, circulars, miscellaneous printed matter on paper not having the nature of personal correspondence, proof-sheets, corrected proof-sheets, and manuscript copy accompanying same, and matter in point-print or raised characters used by the blind. In this class are not included articles bearing print such as envelopes, letters and bill-heads, wrapping paper and all substances other than paper. Rate: One cent for each two ounces or fraction. Full prepayment required. Limit of weight, four pounds, except it be a single book.