For some time past there has been a dispute and dissension among some of the laboring men of the city, who say that they have good cause for grumbling on account of an unequal división of labor and that there has been a great deal of favoritism shown. The board of public works last night took a step to rectify this and hereafter the employment of men will be left to President Smith of the board, and Aid. Koch, the chairman of the Street committee. The board authorized the employment of a masón to repair the man-holes on the main sewer wherever they are necessary. They recommended that the culvert on W. Huron street in the line of Allen's creek be extended at a cost of $100.