Pluvinel, Antoine de, [75], [155].

Pole, adjustment of, in harnessing pair, [334-335].

Pole-chains, appropriate use of, [335-336], [358].

Poling up, four, [366].

Pair, [334-335].

Polo ponies, measurements of, [199].

Ponies, cayuse, [9], [80].

Cherokee, [86].

Iceland, [10].

Norwegian Fiord, [7], [10].