advertise for bids for contracts for sinking or making such well, and constructing said water ways. He shall give not less than sixty days notice of the time and place where such bids may be offered and opened, by causing à notice thereof to be published, not less than eight weekly insertions, in the official paper of said county, such bids shall be filed with the county clerk of said county by the parties making the same and shall be taken subject to the approval of the board of county commissioners of said county. No contract made by the artesian well commissioner shall be valid unless approved by the board of county commissioners of such county, and their approval endorsed thereon by the chairman of said board.
The artesian well commissioner shall contract with the lowest responsible bidder giving adequate security for the performance of the work.
Such security shall cover the completion of the job in the manner and within the time fixed in the contract, and the amount thereof shall be fixed by said artesian well commissioner. Said commissioner shall reserve the right to reject any and all bids and may adjourn the time for receiving such bids from time to time, by publishing a notice of such adjournment but not in all more than sixty days from, and after the time named in the first advertisement, for receiving such bids. The contract for sinking the well may be separate from the contract for constructing the water ways and may be let to different persons. Whenever any such artesian well shall have been fully completed and. final report thereof made by the well commissioner, to the board of county commissioners, the said board shall turn over the control and management of said well and appurtenances to the board of supervisors of the township wherein said well ix situated.
§ 14. Board of assesment--meetings.] Immediately after making his order locating said well, the artesian well commissioner shall notify the chairman of the board of county commissioners and the county treasurer of said county, who shall together with said well commissioner constitute a board of assessment herein. The county clerk of said county shall be the clerk of said board of assesment. The members of said board shall meet within twenty days after receiving said notice, and may adjourn from day to day until their duties are performed as hereinafter set forth.
$ 15. Mode of assessment and apportionment—tax collection.] The said board of assessment shall make an estimate of the costs of constructing said artesian well and the said water ways, for the purpose of raising the funds necessary for the construction of said well. They shall have power to apportion the costs thereof as follows:
1. They shall create a county fund to be known as the Artesian Well Fund, and may levy an assessment upon all taxable property in said county, not exceeding two mills on the dollar, and the basis of value upon which the annual levy of the current or preceding
