IT is an old complaint, and has been the cause of dissatisfaction ever since the inauguration of the industriaf age, that machines, by displacing hands and by taking from the sense of creating, are a positive harm, even a retrogression. That is one view. Another is that machines abolish ' hard labour' (in America men don't dig, but machines do), and that under the reign of mechanistic devices men can change jobs more easily—since their jobs are mainly machine-minding. Moreover, mechanization is really habit; which, since it thereby frees man's mind and creative energies to play along . whatever directions he himself may choose, is not a bad thing. These are views which Dr. Delislo Burns will discuss at length tonight in his second talk in the series.