Fig. 135.—Notation of the Gallop divided into Three Periods of Time (after Professor Marey).
1, First period; 2, second period; 3, third period.
The notation reproduced in [Fig. 135] corresponds to the gallop from the right. It is there seen, as we pointed out above, that in the first phase the exclusive support of the left hind-foot takes place (1); that afterwards, in the second, commence simultaneously, the pressures of the left fore and the right hind foot (2); this is the left diagonal support; and that finally, in the third, the body comes down on a fore-limb, which is then the right (3); and that for a moment it is on this limb alone that the animal rests.
To these three phases on the notation succeeds an interval; this is the period of suspension.
Fig. 136.—Notation of the Gallop of Four Periods in the Horse (after Professor Marey).
1, First period; 2, second period; 3, third period; 4, fourth period.
The gallop of four phases only differs from the preceding in that the foot-fallings of each diagonal biped occur at slight intervals, and give distinct sounds. The notation is reproduced in [Fig. 136].