SECT. 7. The legislature may, after the expiration of five years from the time when such railroad shall be opened for use, from time to time, alter and reduce the rate of toll, or profits, upon said road; but said toll shall not be so reduced, without the consent of said company, as to produce, with said profits, less than ten per cent. per annum, upon the investments of the said company. SECT. 8. The said corporation may contract with the owners of any contiguous railroad leading into or from either of the states of Vermont or New York, for the use of the whole or any part thereof, or for the running and operating the two railroads conjointly, or for the leasing of such contiguous road, or for the letting or hiring of their own road to the owners of such contiguous road, or of any other road which composes a part of the railroad line between the cities of Boston and Troy, of which the railroad hereby authorized shall be a part. SECT. 9. The Troy and Greenfield Railroad Company shall, within one year after the opening of their road for use, purchase and take an assignment of the lease and contract of transportation, made and executed between the Western Railroad Corporation and the Pittsfield and North Adams Railroad Corporation, on the thirteenth day of January, in the year one thousand eight hundred and forty-six; and shall have all the advantages, and assume all the liabilities, accruing under and by virtue of said lease: provided, that the said Western. Railroad Corporation shall perform their covenants in said lease, to keep said road, and other property therewith connected, in repair, until such assignment; and shall, within six months after the said Troy and Greenfield Railroad Company shall have filed the location of their road, according to law, and shall have raised, by subscription, one million of dollars, for the construction of the same, signify, in writing, their election to make such assignment: and provided, that, at the time of such assignment, there shall be secured to said Western Railroad Corporation, by a proper instrument, a lien or mortgage upon all their rights in said Pittsfield and North Adams Railroad, as collateral security for the performance of all the obligations of said corporation, contained in said lease and contract of transportation: and, provided also, that, after the completion of the said Troy and Greenfield Railroad, the said Western Railroad Corporation shall assign and convey, to the said Troy and Greenfield Railroad Company, the said contract of transportation, according to the terms of this section, if the said Troy and Greenfield Railroad Company shall so elect. SECT. 10. This act shall take effect from and after its passage. [_May 10, 1848._ [1852.--Chapter 291.] AN ACT concerning the Troy and Greenfield Railroad Company. _Be it enacted, &c._