Alkali, [59].
America:
Central, [16];
North, Chps. [I.] and [II.], horsemen of, [148];
South, [20].
Ancestors of horse, [2].
Apples, [200].
Argentine, [152], [177], [223];
Remounts, [232].
Arabia, [28], [70], [139], [209].
Armenia, [137-8].
Armies, [224].
Armour, [145].
Arms, [174].