I will describe a few of my sets and hope they will be of value, writes a Rocky Mountain trapper. The first will be a mink set and, like the rest, is best prepared during the summer, then by the time trapping begins the newness is all gone.

Set No. 1 is easily made by bending a few green willows in the shape of the letter U; stick them in a row six inches apart so the top of the bow will be four or five inches from the level. Cut some brush and pile on top and a stake or two driven in will keep it from going away in a freshet. This can be made in the water at a riffle or on the bank of the stream and you will be surprised to note the fine runway you have made.

THE THREE LOG SET.

Set No. 2 is on the same principle, but is made of logs 8 inches in diameter and 5 or 6 feet long. It can be cut on the dotted lines for convenience in placing bait. Set a No. 1 1/2 or 2 trap at each end. This is as good as a hollow log.

MARTEN SHELF SET.

No. 3 is a marten shelf. Like cut, make by nailing a 2-inch stick three or three and a half feet long on each side of a tree and cover the projecting ends with bark — use a weight on bark to keep it from blowing away; nail bait and place trap as shown. Use a spring pole of some description.