Section 11. Common Council—Park Districts. the Common Council of Any

such city shall have power, by ordinance upon and in accordance with the recommendation of the board of park commissioners, to lay off and divide the territory thereof into any number of park districts that the conveniences of the citizens of such city and of administration of the department of public parks may require; and, after such districts are established, may from time to time, in like manner, add new territory to any established district, or create new districts from territory which may be annexed to any such city. When such division is thus made of the territory of any such city into districts, or when alterations are thus made in the districts, the boundaries thereof shall be accurately defined, and the descriptions of boundaries shall be entered by such board at full length in the records of such board and shall be recorded in the office of the recorder of the county in which such city is situated; and a duly authenticated copy thereof shall be filed with the comptroller of such city.