Chap. 0723 An Act to provide for a supervisory night watch and fire alarm service in the state house. Be it cnaGted, etc., as follows: Section 1. A supervisory night watch and fire alarm service may be established in the state house, under the direction of the state house commission, if the commission deems it advisable, providing that the same is installed without expense to the commonwealth; and there shall be allowed annually from the treasury of the commonwealth for the maintenance of the said service, a sum not exceeding one thousand dollars. Section 2. This act shall take effect upon its passage.