' authorization by Congress, be used directly or indirectly to pay for <br /> <br /> ~r? any personal service, advertisement, telegram, telephone, letter, <br /> printed or written matter, or other device, intended or designed to <br /> influence in any manner a Member of Congress, to favor or oppose, by <br /> vote or otherwise, any legislation or appropriation by Congress, <br /> whether before or after the introduction of any bill or resolution <br /> proposing such legislation or appropriation; but this shall not <br /> prevent officers or employees of the United States or of its <br /> departments or agencies from communicating to Members of Congress on <br /> the request of any Member of Congress, through the proper official <br /> channels, requests for legislation or appropriations which they deem <br /> necessary for the efficient conduct of the public business. <br /> 19. AMENDMENTS This agreement may be amended or altered by <br /> written agreement of the parties, duly executed, and attached hereto. <br /> 8 <br /> <br />