The outer belt of parks and forest preserves, the boulevards and highways connecting country towns with each other and with the city, and the extension of a driveway around the shore of Lake Michigan, involve relations with counties outside of Cook, and even with states beyond the borders of Illinois. It may safely be assumed, without specific inquiry, that the laws of Wisconsin and Indiana, if not already adequate to the performance of their share in the project, can easily be made so by the people of those states. In Illinois the existing laws are in the main sufficient for the needs of local communities which desire, by the exercise of their present taxing powers or the organization of park districts, to bear their part in a general scheme of improvement. The Act of June 19, 1893,[35] provides for the incorporation of park districts to connect two or more cities or villages by means of boulevards or parks. A more comprehensive measure is the Act of June 24, 1895,[36] under which several park districts in Cook County, such as those at Winnetka, Kenilworth, Wilmette and Rogers Park, have been organized by vote of the people of those communities. A district formed under this act may acquire land for parks or boulevards by purchase or condemnation, and the board of park commissioners may accept from any municipality in the district the control of any park or boulevard therein. Bonds may be issued up to three per cent of the assessed valuation of property in the district, and, in addition to taxes for the payment thereof, a general tax of four mills on the dollar may be collected. Special assessments for local improvements may be levied through the township authorities. Districts bordering upon navigable bodies of water are empowered to reclaim submerged lands, and the title of the state is granted for that purpose to the park district to which such submerged land is adjacent. The park authorities could construct islands or driveways beyond the present water line. They would be required to recompense the owners of the shore for any loss or diminution of their riparian rights; but the benefits to the shore lands would doubtless in many, if not most, instances more than offset the cost of the property and property rights that would be taken or damaged for the improvement. Among local agencies which might co-operate in suburban development may be mentioned the townships. These have long exercised jurisdiction over country roads, and they were authorized by two Acts of March 2, 1907,[37] to secure small parks by purchase or condemnation and upon vote of the people to issue bonds and levy taxes for that purpose. No park so established can be more than ten acres in extent.