the pace, my correspondent says: “There are some horses trained to pace, while some pick it up naturally, that is, are born pacers. The greater number are natural pacers. Now and then one will find a rapid pacer, but commonly the pace is a five or six miles an hour gait. There are some that single-foot naturally, and from birth.” He then says horses are not bred with any care. They are turned loose in herds and the breeding is such as would naturally occur. It will be observed that my Persian friend speaks of the different colors “of grey, shading into white,” which suggests a possible descent from the famous breed of white Nissæan horses kept by the great Darius and other Medo-Persian monarchs for racing purposes. But the striking feature in this description of the horses of Persia, or more properly, of ancient Armenia, of this day, is the fact that they are of the same size and color and habits of action as the horses of Britain when first visited by the Romans, as well as when they were more minutely described twelve hundred years later, and as they were at the beginning of the seventeenth century, and as they still were at the middle of the eighteenth century. As evidence on these points reference is made to the chapters on horses of the colonial period that will follow in their place. In ancient Armenia, as with all pastoral people of the early ages, horses were turned out to run in herds and literally left to Mr. Darwin’s law of “natural selection and the survival of the fittest.” So it was in Britain to a great extent, until the eighteenth century, and so it was in the American colonies until fifty years later; hence the same types and characteristics prevailed and were perpetuated in all these countries.