_Eleventh._ Payments hereon shall be made to the party of the second part, his heirs, executors, administrators, or assigns, in cash; but if the government bonds received by the company cannot be converted into money at their par value net, and the first mortgage bonds of the company at ninety cents on the dollar net, then the said party of the second part, his heirs, executors, administrators, and assigns shall be charged thereon the difference between the amount realized and the above-named rates; provided the first mortgage bonds are not sold for less than eighty cents on the dollar, and if there shall not be realized from the sale of such bonds an amount sufficient to pay the party of the second part, his heirs, executors, administrators, or assigns, for work, as stipulated in this contract, and according to the terms thereof, then such deficiency shall from time to time be subscribed by said party of the second part, his heirs, executors, administrators, or assigns, to the capital stock of said company, and proceeds of such subscriptions shall be paid to said party of the second part, his heirs, executors, administrators, or assigns, on this contract. _Twelfth._ On the first one hundred miles on this contract, there shall be added to the equipment now provided for and intended to apply on this section as follows, viz: Six locomotives, fifty box cars, four passenger cars, two baggage cars, and a proportionate amount of equipment of like character be supplied to the second section of one hundred miles, after the same is completed. _Thirteenth._ The amount provided to be expended for equipment, station buildings, &c., shall be expended under the direction of the party of the first part, and in such proportion for cars, locomotives, machine shops, station buildings, &c., and at such points as they may determine; the party of the first part to have the full benefit of such expenditures without profit to the contractor, or they may, in their option, purchase the equipment and expend any portion of said amount provided at any point on the road where they may deem the same most advantageous to the company, whether on the section on which said reservation occurs or not. _Fourteenth._ The telegraph line is included herein under the term "railroad," and is to be constructed in the same manner and with similar materials as in the line east of the one-hundredth meridian. The said parties hereto, in consideration of the premises and of their covenants herein, do mutually agree, severally, to perform and fulfil their several and respective agreements above written. This contract having been submitted to the executive committee by resolution of the board of directors, August 16, 1867, and we having examined the details of the same, recommend its execution by the proper officers of the company with the Hon. Oakes Ames, the party named as the second part.