laying a tax on the citizens to pay the interest of the water loan. 2d. To limit the power of the Water Commissioners over the aqueduct to its termination at Murray's Hill. 3d. To authorise the Commissioners, with the assent of the Common Council, to change the plan of crossing the Harlem on a high bridge, to inverted syphons and iron pipes. 4th. To postpone the construction of a reservoir at Yorkville ; and 5th, to authorize the Com- mon Council to execute all the work south of Murray's Hill. We annex these sections : § 4. The moneys to be raised by virtue of this act shall be applied and expended to and for the purpose of supplying the city with pure and wholesome water, according to the provisions of the act hereby amended ; and no part of the funds created by this act, or any other fund raised for the purpose of constructing or completing the Croton Aque- duct, and the works connected therewith, and distributing the water through the city, shall be diverted from such object. § 5. All the provisions of law heretofore passed on this subject, pledging the faith of the city of New York, and providing a sinking fund for the redemption of the stock issued by virtue thereof, are hereby made applicable to the stock issued in pursuance of this act. § 6. It shall be lawful for the Mayor, Recorder, and Aldermen of the city of New York, as the supervisors of the city and county of New York, of whom the Mayor or Re- corder shall be one, from time to time, and as often as they may deem it necessary, to order and cause to be raised by tax on the estates real and personal of the freeholders and inhabitants of, and situated within, the said city, and to be collected, such amount of money as shall be requisite to defray the interest upon the Water Stock of the city of New York. § 7. The said money shall be assessed and collected in the same manner as now pro- vided by law for the assessment and collection of taxes in the city of New York. § 8. It shall be the duty of the Water Commissioners of the city of New York, to finish and complete the aqueduct for supplying the said city with water, down to and including the distributing reservoir at Murray's hill, according to the plan adopted by the said Commissioners, and ratified by the Common Council of the said city, with such im- 48 190 MEMOIR OF THE material alterations as may be necessary, and as may be agreed upon by the said Water Commissioners and the said Common Council. § 9. The said Commisoioners, by and with the consent of the said Common Council, shall have full power and authority to change the plan of crossing the Harlem river with arches and piers, and instead thereof to carry the water across the said river by means of inverted syphons of iron pipes, until otherwise directed by the Legislature, so as not unnecessarily to interrupt the navigation of the said river. And the said Commissioners are further authorised by and with the consent of the said Common Council, to alter the plan of constructing the reservoir at or near to Yorkville, and to complete so much of such reservoir as shall be deemed sufficient for the present purposes of such aqueduct. § 10. It shall be the duty of the Mayor, Aldermen and Commonalty of the city of New York, to execute all the work necessary for supplying the said city with water, and for distributing the same for the use of the inhabitants thereof, below the said distributing reservoir at Murray's hill ; and the said Mayor, Aldermen, and Commonalty shall as- sume the execution and performance of the following contracts, made by the said Water Commissioners for work and materials to be supplied for the construction of the said aqueduct, below the said reservoir at Murray's hill ; that is to say, their contract with Henry V. B. Barker, dated twentieth of October, one thousand eight hundred and forty, for work to be done on the Fifth Avenue, between Fortieth and Twenty-first streets ; their contract with John B. Chollar and Ebenezer Jones, made the twenty-third of Octo- ber, one thousand eight hundred and forty, for iron pipe ; their contract with S. V. Mer- rick and John Town, for seven hundred tons of thirty-inch iron pipe ; and also their con- tract with T. H. Wintersteen and David I. Myers, for five hundred tons of iron pipe ; all which said contracts are deposited in the office of the Comptroller of the city of New York. The relative rights and duties