To successfully conduct the mechanical end of the business the contractor must have complete control over and be in harmony with his workmen. To do so he must treat them with fairness and pay them the prevailing rate of wages. They cannot, then, demur at his requirement of a fair day's work. He should try, further, to impress them with the fact that upon his success in securing contracts depends the regularity and permanence of their work, and that he cannot secure contracts if the men in his shop do not perform as large a day's work as do his competitor's workmen. Most workmen are fair and reasonable, and as a matter of satisfaction to themselves wish to do what is right and proper, and if a disturbance creator gets into the fold drop him as soon as possible, for just as one rotten apple in a barrel will spoil all the rest, so will one discontented spirit in a shop spread dissatisfaction and discord among the men. Treat the men in your employ right; pay them the highest rate of wages, then exact of them the best equivalent in work. Make it a point to know the capacity and limitations of all the workmen in your locality, and when in need of help select only the workmen that will be satisfactory.