_And be it further enacted_ that the grants aforesaid are made upon condition that said Company shall pay said bonds at maturity, and shall keep said railroad and telegraph line in repair and use, and shall at all times transmit dispatches over said telegraph line, and transport mail, troops and munitions of war, supplies and public stores upon said railroad for the Government, whenever required to do so by any department thereof, and that the department shall at all times have the preference in the use of the same for all the purposes aforesaid (at fair and reasonable rates of compensation, not to exceed the amounts paid by private parties for the same kind of service), and all compensation for services rendered for the Government shall be applied to the payment of said bonds and interest until the whole amount is fully paid. Said Company may also pay the United States, wholly or in part, in the same or other bonds, treasury notes, or other evidences of debt against the United States, to be allowed at par, and after said road is completed, until said bonds and interest are paid, at least five per-centum of the net earnings of said road shall also be annually applied to the payment hereof.[82] In 1864 this section was changed by requiring only one-half of the compensation for services rendered to the government to be applied to the payment of bonds issued by the government in aid of construction, but the declaration that the bonds should be paid was not altered. Not only was this true, but the government demanded security for repayment. In 1862 it declared that the issue of said bonds and delivery to the company should _ipso facto_ constitute a first mortgage on the whole line of the railroad and telegraph, together with the rolling stock, fixtures, and property of every kind and description. In 1864 the lien of the United States bonds was subordinated to that of a second mortgage, but the idea of some security was preserved. Third, the government reserved the right to reduce the rates of fare upon the Central Pacific, as well as upon the other railroads provided for in the Act of 1862, as unreasonable, when net earnings should exceed 10 per cent upon cost, exclusive of the 5 per cent to be paid to the United States. Fourth and last, an annual report was asked for, which was to set forth earnings, expenses, indebtedness, the amount of stock subscribed, a description of the lines of road surveyed, and the names and residences of the stockholders. Amounts Granted