Gradually, in the colonies as in England, the evolution of refinement specialized the home; developed drawing-rooms, dining-rooms, libraries; and so took away from the "great halls" almost all of this intimate life of the household.

Very delicately specialized manipulation is precisely the work it pays best to do by machinery, so that, as Professor Marshall says, "machinery can make uniform actions more accurately and effectively than man can; and most of the work which was done by those who were specially skilful with the fingers a few generations ago, is now done by machinery."