Walter Esplin Mason, Dogs of all nations (1915)
“ The sagacity displayed by a really good sheepdog gathering sheep upon a mountain side, often a mile or more away from his master, must be seen to be believed. When the farmer goes out to gather his flock for shearing or other purposes, far away upon the bleak hillside, little clusters of white spots are all that are to be seen. The farmer takes up a position upon some point of vantage, gives a word or whistle or instruction to his four-footed companion, and the dog bounds away in response till he seems no more than a tiny moving speck occasionally visible in the distance. ”
