To burn out tent caterpillars a torch has to be used which Prof. Riley thus describes: Take a piece of soft brick known as salmon brick, and trim it to an egg shape; then take two flexible wires, cross them over the brick, wrap them around it, and twist the ends together. Then attach it by the wires to a long stick, and soak the brick in coal oil; light it with a match and you are armed for the work. Asbestos may be used to advantage; and a little thorough work early enough in the season, will obviate the necessity of more expensive remedies at a later time. The soaking in the oil may be repeated as often as required to maintain the flame".