4. Passing another on the front of the ladder, or swinging to the
back, to let another pass.
_The Inclined Board._
This should be rather rough, about two feet broad, and two inches
thick. To climb it, it is necessary to seize both sides with the hands,
and to place the feet flat in the middle, the inclination of the board
being diminished with the progress of the pupil.
At first, it may form with the ground an angle of about thirty degrees;
and the climber should not go more than half-way up. This angle may
gradually be augmented to a right angle, or the direction of the board
may be made perpendicular. When the board is thus little or not at all
inclined, the body must be much curved inward, and the legs thrust up,
so that the higher one is nearly even with the hand. In descending,
small and quick steps are necessary.
[Illustration: _Plate XVIII_
_Page 64._