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 experiences of such early explorers as these.

On the twenty-sixth they "left the Inhabitans," as Dr. Walker called the line of civilization, and were at last within the wild land where no settlers had yet come. On the night of the twenty-ninth the "Dogs were very uneasie," and the next day, on Reedy Creek, a branch of the South Fork of the Holston, the tracks of a party of Indians were discovered, which explained the restlessness of the dogs. It is probably little realized in this day how valuable dogs were to explorers and immigrants. They were not only of service in giving warning of the approach of strangers, but were well-nigh indispensable in securing game and in searching for lost horses. Dr. Walker's love for dogs is a tradition in the family, and his care of them on this journey is typical of the gentleman and the wise frontiersman. At the junction of Reedy Creek and the Holston—an historic spot in Tennessee—Walker found a gigantic elm tree, which measured twenty-five feet in circumference at a distance of three feet from the ground. Pioneers