SEC. 24: Subject to rules and regulations which shall be adopted by the Board of Supervisors, by ordinance, the Purchasing Agent shall be the buyer of furniture, fixtures, tools, supplies, materials or other articles of personal property for the county and for county, township and all other officers. SEC. 25: Each county or township officer, Board or Commission shall have the powers and perform the duties now or hereafter prescribed by general law, and by this Charter, as to such officer, Board or Commission. ARTICLE VII. _Road Department_ SEC. 26: The Board of Supervisors may provide for the formation of road districts for the care, maintenance, repair and supervision of roads, highways and bridges; and for the formation of highway construction divisions for the construction of roads, highways and bridges; for the inclusion in any such district or division of the whole or any part of any incorporated city or town upon ordinance passed by such incorporated city or town authorizing the same, and upon the assent to such inclusion by a majority of the qualified electors of such incorporated city or town or portion thereof proposed to be so included at an election held for that purpose; for the organization, government, powers and jurisdiction of such district or division, for raising revenue therein for such purposes, by taxation, upon the assent of a majority of the qualified electors of such district or division, voting at an election held for that purpose; for the incurring of indebtedness therefor by the county, district or division for such purposes, respectively, by the issuance and sale, by the county, of bonds of the county, district or division, and the expenditure of the proceeds of the sale of such bonds, and for levying and collecting taxes against the property of the county, district or division, as the case may be, for the payment of the principal and interest of such indebtedness at maturity; provided that any such indebtedness shall not be incurred without the assent of two-thirds of the qualified electors of the county, district or division, as the case may be, voting at an election held for that purpose, nor unless before or at the time of incurring such indebtedness, provision shall be made for the collection of an annual tax sufficient to pay the interest on such indebtedness as it falls due, and also for a sinking fund for the payment of the principal thereof on or before maturity, which shall not exceed forty years from the time of contracting the same; and the procedure for voting, issuing and selling such bonds, except insofar as the same shall be otherwise prescribed in this Charter, shall conform to general laws for the authorizing and incurring of bonded indebtedness by counties so far as applicable; provided, further, that the construction, care, maintenance, repair and supervision of roads, highways and bridges for which aid from the state is granted shall be subject to such