"A beaver has as many wives as he can git," my host informed me as we sat before his fire. "There's some that don't have many, and agin there's some that have a lot, and that's the reason we find some ponds with only a little house an' others with mighty big ones." A Brigham Youngish sort of conception of beaver domestic economy! That same summer another trapper in Middle Park, not many miles from the first, gave me his version of a beaver's domestic life. "Don't think they mate at all," he told me; "they're always working to beat time or else they're wanderin' off somewhere lookin' up good cuttin' timber and dam sites." Now, I am sure that Mr. and Mrs. Peg were mated, and for life. Indeed, I believe all beavers mate for life. They are by nature domestic, home-loving and industrious, and provident, storing up food for the winter, making provision against the time food will be scarce because of snow and ice. They have the coöperative instinct and often combine their efforts, constructing a house large enough for the whole colony in the deepest water of the pond, all joining in the harvesting of green aspen or cottonwood. Every fall I watched Mr. and Mrs. Peg at their repairs. Their tribe increased as the years passed, and the shielding laws of the state protected them. I called their group the "Old Settlers" colony. [Illustration: Every fall I watched Mr. and Mrs. Peg at their repairs.] One fall the Old Settlers abandoned their pond and constructed an entirely new dam above it, thus solving a number of problems. Sand and gravel carried down by the swift little stream had settled in the still water of the pool and almost filled it. The ever-increasing family outgrew the old house. All the near-by aspens had been cut; this necessitated the dragging of trees too great a distance before they could be pushed into the water and floated down. Coyotes had surprised and killed a number of the Old Settlers' kin as they worked on the long portage to the stream, and I am sure that the moving of their home was partly to overcome this danger.