The pomace flies. Insect Life, p. 184. Scale insects. Manual for Study of Insects, pp. 165-174. Potato beetle. Manual for Study of Insects, p. 176. _Spring work._--Tussock moths and canker worms. Circular No. 9, 2d Series, Dept. Agr., Div. of Ent., Washington, D. C.; Cornell Teachers' Circular, No. 1. Cabbage worms. How to Know the Butterflies. Currant worms. Manual for Study of Insects, pp. 613-614. Plant lice or aphids. Insect Life, pp. 177-178. Carpet beetle. Circular No. 5, 2d Series, Dept. Agr., Washington, D. C.; Manual for Study of Insects, p. 539. Clothes moth. Manual for Study of Insects, pp. 257-258; Circular No. 36, 2d Series, Dept. Agr., Washington, D. C. Tent caterpillar. Cornell Teachers' Leaflet, No. 5 (No. XIX, this volume). A study of spraying should be made. Insects and Insecticides, pp. 39-56. Spray Calendar, distributed free by the Cornell Agricultural Experiment Station. Important Insecticides. Farmers' Bulletin No. 127, Dept. Agr., Washington, D. C. INSECT FRIENDS. _Fall work._--Lady bugs. Insect Life, p. 179. Aphis lions. Insect Life, p. 178; Ways of the Six-Footed, p. 125. Red clover and the bumble bee. Parasitic insects. Manual for Study of Insects, pp. 621-630. _Spring work._--Bees and orchard in blossom. _Summary of methods._--The observations may be made in the schoolroom or out-of-doors. There should be observations of experiments in spraying. This may be accomplished in most localities by encouraging the pupils to visit orchards undergoing the operation of spraying. However, by means of syringe or watering pot, the infested plants brought into the schoolroom may be sprayed and the results noted. Lessons should be given on the importance of preserving insect friends while we are destroying insect enemies. OTHER ANIMALS ADAPTED FOR NATURE-STUDY. _The Toad and Frog._ The study of either of these two species is delightful spring work for any grade. Cornell Teachers' Leaflet, No. 9 (No. XVI, this volume); Wilderness Ways, p. 25. _Salamanders or Efts._ Familiar Life of the Roadside. _Fishes._ Observations upon goldfish or minnows kept in an aquarium should be made the basis of lessons upon the life of fishes. Study: (1) The shape of the body; see how it is especially adapted to rapid movement through the water. (2) The shape and arrangement of the fins, and their uses. (3) How the fish propels itself through the water. (4) How the fish breathes. (5) The shape of the fish's mouth, and how and what it eats. (6) Experiment to ascertain the ability of the fish to see and hear. Cornell Teachers' Leaflet, No. 21 (Nos. XIII and XXXVI, this volume). Encourage observations of habits of different species of fish common in our ponds and streams. Study their eggs and the places where they are found. Teach the children the reason for the game laws, and impress upon them a true respect for those laws. Food and Game Fishes.