As a general rule it is no doubt best to confine ourselves to one thing at
a time, if the results are to be satisfactory and the work well done. In
the present case, if he feels that way, the collector can relieve the
monotony of trunk searching by operating in another direction at the same
time. Some moths prefer to repose on the branches, or on the leaves of
trees, others among the herbage under trees; these may be disturbed from
their lurking places and caused to fall or take wing by jarring the boughs
or brushing the undergrowth with a stick.
[Illustration: FIG. 9.