Section 16
SEC. 16. The grantee, his lessees, successors, and assigns shall agree to carry the mails upon such terms and conditions and at such rates as may be agreed upon between the Director of Posts and the grantee. In case the Director of Posts and the grantee can not agree on terms, conditions, or as to rates of transportation of the mails, the Governor-General, after giving the grantee opportunity to be heard, shall fix the rates of transportation and the terms and conditions under which the mails shall be carried by the said tramway. If the Government of the Islands should require, in addition to the ordinary mail service, the transportation of mail on urgent orders, at other hours or at a higher speed than may be prescribed by the ordinary tram-train schedule, or should the Government require the transportation of troops, ammunition, bullion, freight, or war supplies the grantee shall provide, day or night, .special conveyance for same and be allowed such extra compensation therefor as may be reasonable.