structed, and on the revenue of all descriptions derivable therefrom, and upon all materials, rolling stock and buildings of every description purchased or to be purchased for the Railway.
Should there be default in payments on the dates fixed of all or part of the half yearly interest or amortization payments, the Contractors shall have the right to exercise on behalf of the Bondholders all the rights of action which accrue to them from the special mortgage.
ARTICLE IV
During the time of construction of the Railway the interest on the Bonds and on any advances made by the Contractors shall be paid from the proceeds of the Loan. The accruing interest from any proceeds of the Loan not used during the period of construction, and the earnings derived by the Corporation from the working of any sections of the Railway as they are built, are to be used to make up the amount required for the payment of the said interest, and if any deficiency remains it is to be met from the proceeds of the Loan.
When the construction of the Railway is wholly completed, the interest on the Bonds is to be paid from the income or earnings of the Railway received by the Corporation, in such manner and on such dates as may be provided for in the Detailed Agreement provided for in Article 17 of this Agreement.
If, at any time, the earnings of the Railway, together with the funds available from the proceeds of the Loan,
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