HORN FLY.
—A small insect about half as large as the common house flies, and very much like them in appearance. Horn flies swarm about the head and settle near the base of the horn, where they bite and cause much irritation. They also attack cattle on the back and sides and flank. The fly mixtures that are commonly advertised, and applied by means of a hand-spray, are excellent for keeping the pests away. A good home mixture to apply at the base of the horns is made of pine tar, kerosene, and fish oil. Use this in equal parts, and apply with a brush.