The scope for laughter which, given the disposition,
these divisions of group and of rank bring with them
is further widened by the vital circumstance that, as
groups in the same community, they have to enter into
various relations with one another. A judicious mixture
of opposition and harmony of interest seems to be most
favourable to a rich production of mirth. This is illus-
trated even in such masterful relations as that of the
overseer and the commanding officer, who may find that
the compulsion of the rod is inadequate to the extraction
of the required amount of work, and so have to cast
about for other instruments.
