STANDARD HISTORY OF THE WORLD Progressive 1929 — Publishers’ Guarantee — 1939 The owner of this set of The Standard History of the World is entitled to the semi-annual Loose-Leaf Revision Service as provided under the terms of the original contract, for a period of ten years, provided the conditions of the said contract have been complied with. The Revision pages, by means of which the Standard History is kept up to date, will be mailed semi-annually to the name and address of record on the publishers’ subscription list. In case of any change of address or ownership the publishers must be promptly advised in order that they may correct their mailing list. It is understood that the publishers shall not be responsible for non-delivery of the Service where owners fail to notify them of such change of address or ownership, nor shall the publishers be obligated to furnish back issues of revision pages that subscriber may not have received due to his failure to notify the publishers of change of address. Notice of change of address must be sent to the STANDARD HISTORICAL SOCIETY, Atlas Bank Building, Cincinnati, Ohio.