Let us consider again the condition of things when rounding a curve,
as in the sketch on page 32. As long as the machine is moving forward
in a straight line, the operator sits upright. When it begins to tip,
he will unconsciously tip himself the other way, as represented by
the line _xy_ in the rear view. Any bicyclist will recognize this as
plausible. Why not take advantage of this involuntary movement to
provide a stabilizing force? If operating wires are attached to the
aviator's belt and from thence connected with ailerons or wing-warping
devices, then by a proper proportioning of levers and surfaces to the
probable swaying of the man, the control may become automatic. The idea
is not new; it has even been made the subject of a patent.