During the existence of this contract, after the payment of the license fee hereunder, the Æolian Company obligates itself to prosecute diligently, at its own expense and by its own counsel, in the name of the proprietors of the copyright, all infringers of the rights granted to it, the Æolian Company. And the parties hereto mutually covenant and agree that all the provisions of this agreement shall be binding upon and inure to the successors, executors, administrators, and personal representatives of both the parties hereto. In witness whereof the publisher has on the day and year first hereinabove written hereunto set his hand and seal, and the Æolian Company has caused its name and corporate seal to be hereunto affixed by its proper officer thereunto duly authorized. CHICAGO MUSIC COMPANY, [SEAL.] PLATT P. GIBBS. THE ÆOLIAN COMPANY. [SEAL.] By E. S. VOTEY, _Director_. Signature of publisher witnessed by-- J. F. BOWERS, PAULINE FLAHERTY. Memorandum of agreement made and entered into this 30th day of April, 1902, by and between Chicago Music Company, of Chicago, in the State of Illinois, party of the first part, hereinafter called the publisher, and the Æolian Company, a corporation organized under the laws of the State of Connecticut, and having a place of business in the city of New York, in the State of New York, party of the second part, hereinafter called the Æolian Company, witnesseth: That whereas the parties hereto have, of even date herewith, entered into an agreement whereby the Æolian Company is to have the exclusive right for all perforated music sheets intended for use in controlling automatic musical instruments or machines for playing musical instruments, in and to the copyrighted musical compositions of which the publisher is the proprietor or as to which he is the owner of any rights, and in and to all those other musical compositions which may hereafter be protected by copyright and the copyrights or rights in which may be acquired by him; and Whereas the parties hereto are desirous of entering into a further agreement with reference to the matters and things expressed in the above-mentioned agreement of even date herewith;