6. [_Must be unsealed; if writing is enclosed will be treated as a letter._] 7. No Book or packet of Periodicals, Magazines, &c., can be forwarded through the Post, if exceeding the weight of forty-eight ounces. JAMES MORRIS. _Post Master General._ It is of course understood that the above does not apply to newspapers, which were charged to a nominal rate of 1/2d. each, the term _newspaper_ being considered to aply to periodicals issued not less often than once a week. A supplementary order was issued, a couple of days later than the preceding, which announces a book post with England. It is a bit curious as prohibiting the use of postage stamps in prepayment of the charges, at a time when their introduction was supposed to be an improvement in the postal service. SUPPLEMENTARY ORDER. POST OFFICE DEPARTMENT. TORONTO, 19_th April_, 1851. _Book Post with England._ Under the authority of Her Majesty's Government, an arrangement will take effect on the fifteenth day of May next, under which Printed Books, Magazines, Reviews, or Pamphlets, whether British, Colonial, or Foreign, may be sent through the Post, between Canada and the United Kingdom, at the Following Rates of Postage: [S] = Sterling | [S] | Currency For a single volume, | | _i.e._, Book, Magazine, Review, or Pamphlet, | | not exceeding half lb. in weight | 6d. | Equal to 7-1/2d. | | For a single volume, &c., | | exceeding half lb. and not exceeding one lb. | 1s. | " to 1s. 3d. | | For a single volume, &c., | | exceeding one lb. and not exceeding two lbs. | 2s. | " " 2s. 6d. | | For a single volume, &c., | | exceeding two lbs. and not exceeding three lbs. | 3s. | " " 3s. 9d. The above charge must always be pre-paid, on printed Books, &c., &c., sent to the United Kingdom under this Regulation, at the time of posting in Canada; and the pre-payment must be made in money, and cannot be taken in Canada Postage Stamps. Postmasters, as with pre-paid Letters for England must rate the Books, &c., posted under this Regulation, in _red ink_, with both the sterling rate and its equivalent in currency, ...--thus, a Book, &c., weighing 3-1/2 pounds, will be rated:-- "Paid 4s. sterling--equal to 5s. currency." * * * * * JAMES MORRIS, _Post Master General._ The Department Circular No. 5, published from Toronto on 20th June, 1851, contains but one paragraph of interest to us.