4. To promote simplicity and economy in the business of the Post Office, all letters posted in Canada for any place within the Province, and not prepaid, shall be charged seven instead of five cents per half ounce on delivery; and on letters posted for the British Mails, for the other British North American Provinces, or for the United States, when not prepaid, there shall be charged such addition to the ordinary rate, not in any case exceeding a double rate, as the Post Master General may agree upon with the Post Office Authorities of those Countries, for the purpose of enforcing prepayment. 5. The Post Master General may establish a Parcel Post and parcels other than letters and not containing letters, may be sent by such Parcel Post, and when so sent shall be liable to such charges for conveyance and to such regulations as the Governor in Council shall from time to time see fit to make. * * * * * 8. [_To inclose a letter in a parcel or a newspaper, posted as such, is a misdemeanor._] From the above Act we see that the transmission of newspapers has again been subjected to revision looking toward an increase of revenue, all free transmission by post being now limited to exchange copies between editors or publishers. The making of prepayment by stamps obligatory was another step which had been quite strongly recommended in the last Postmaster General's report in these terms:-- No single improvement would be so valuable to the Post Office service as the introduction of the system of the pre-payment of letters by stamp. It is not recommended that pre-payment of letters should be made absolutely compulsory, but where stamps are readily procurable, pre-payment in that form should be insisted on, and the principle of pre-payment should be enforced by imposing an additional charge on letters posted unpaid. By referring to the Act subsequently passed we see that these recommendations were carried out to the letter.