Notices and all other communications contemplated by this Agreement shall be in writing and shall be deemed to have been duly given when personally delivered or when mailed by U.S. registered or certified mail, return receipt requested and postage prepaid. In the case of the Employee, mailed notices shall be addressed to him at the home address which he most recently communicated to the Corporation in writing. In the case of the Corporation, mailed notices shall be addressed to its corporate headquarters, and all notices shall be directed to the attention of its Secretary.