Section 67
SEC. 67. Contents of Ordinance.-The ordinance providing for the levying and collection of a special assessment shall describe in terms of reasonable accuracy the nature, extent, and location of the proposed improvement; the probable cost of the improvement; the rate per centum of the cost to be defrayed by special assessment; the district which shall be subject to the payment of the said rate per centum of the proposed improvement, delimiting the same by metes and bounds, and the number of annual installments, which shall not be less than five, in which such special assessment shall be paid without arty interest. The City Council shall not be required to fix one uniform rate per centum for all the taxable real estate in the entire district, but may fix different rates for real estate in different parts or sections of the same, according as said property will derive greater or less benefit from the contemplated improvement.