City of Chicago v. Hanreddy

The city is incorporated under “An act to provide for the incorporation of cities and villages,” approved April 10, 1892. (Hurd’s Revised Statutes, 1895, Chap. 2L) Section 50 of article 9 of chapter 24 is as follows:

“ Sec. 50. All contracts for the making of any public improvement to be paid for in whole or in part by a special assessment, and any work or other public improvement, when the expense thereof shall exceed $500, shall be let to the lowest responsible bidder in the manner to be prescribed by ordinance, such contract to be approved by the mayor oí- president of the board of…