That the Provincial Postage on Newspapers, Pamphlets, Magazines and Printed Books, shall remain such as it now is until it be altered by regulation under this Act.... Provided always, that one copy of each newspaper published in this Province may be sent free from postage to any Publisher of another Newspaper in this Province, that all printed documents addressed to the Publisher of any Newspaper in this Province shall be delivered to him free, and that all Newspapers published in this Province and addressed to Subscribers in the United States, shall pass free to the Provincial line, under such regulations as the Governor in Council shall make to prevent the abuse of the privileges hereby granted: And, subject to the foregoing provisions of this section and to the other express provisions of this Act, the Governor in Council shall have full power and authority ... for establishing the rates of postage on Newspapers and Printed Pamphlets, Magazines and Books, and for declaring what shall be deemed such, or directing that in any case or class of cases they be free of postage, either in the first instance or the case of their being re-mailed, ... for the preparing and distributing of Provincial stamps for pre-payment, for limiting the weight and dimensions of letters or packets to be sent by Post ... for prescribing the conditions and circumstances under which letters, accounts and papers relating solely to the business of the Post Office, and addressed to or sent by some officer thereof, shall be free from Provincial Postage, ... for providing, when he shall think it expedient, means for avoiding the risk of transmitting small sums of money through the Post, by establishing a system of money orders to be granted by one Post Master or officer of the Department on another, and fixing the terms on which such orders may be obtained, for establishing a system for the Registering of letters and the charge[6] be made for such registration, ... for the delivery of letters and packets in the larger and more populous Cities and Towns, at the residences of parties to whom they are addressed, and fixing the limits within which such delivery shall take place, and the rates to be paid by the parties who shall prefer to have their letters and packets so delivered, rather than apply for them at the Post Office: ... and generally to make such regulations as may be deemed necessary for the due and effective working of the Post and Postal business and arrangements, and for carrying this Act fully into effect: