Any person having a claim or account against the township may file such claim or account in the office of the township clerk, to be kept by the said clerk, and laid before the township board at their next meeting; provided, however, that any person having a claim against the township may present said claim to the township board himself, or by an agent, at any legally convened meeting of said board; said board shall have the power to determine the legality or illegality of any claim or account against the township, and to reject said claim, or any part thereof, as to them appears just and proper; but in no case shall the township board be authorized to allow any claim, or any part thereof, until the claimant makes out a statement, verified by affidavit to the amount and nature of his claim, setting forth that the same is correct and unpaid, or, if any part thereof has been paid, setting forth how much.