Section 27. Aggregate Benefits. the Powers Herein Granted for the

assessment of benefits against property, except as to powers similar to those of the board of public works of such cities, are hereby further limited as follows: The aggregate amount of benefits which may be assessed against property by such park board in cities of the first class during said ten year period, from and after the taking effect of this act, shall not exceed one million, two hundred and fifty thousand dollars. The total amount of such local benefits which may be assessed by such board of park commissioners in cities of the first class during any one year after the taking effect of this act, shall not exceed two hundred thousand dollars. The aggregate amount of benefits which may be assessed against property by such board of park commissioners in cities of the second class during said ten year period, from and after the taking effect of this act, shall not exceed five hundred thousand dollars. The total amount of such local benefits which may be assessed by any such board of park commissioners in cities of the second class during any one year after the taking effect of this act shall not exceed fifty thousand dollars: Provided, That if in any one year such board of park commissioners in any city of the first or second class should assess an amount less than the annual limitation herein contained, then and in that event any such board may, in the following or any subsequent year, make such assessments in excess of said annual limitation to the amount of such difference between such annual limitation and the amount assessed in any previous year. The limits herein fixed shall not be deemed to apply to any sum which may be raised from a general tax levy, and appropriated by the council of such city for the use of such park board, or received from any source other than through benefit assessments, but the limiting amounts herein named shall apply only to such benefit assessments, not including those ordered by powers similar to those of the board of public works.