. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 352 Hafidbook of Nature-Study 7. How do the nuthatches, downy woodpeckers and chickadees help us in getting rid of the codHng moth? 8. Write an essay on the hfe history of the codHng moth, the damage done by it, and the best methods of keeping it in check. References—The foUowing bulletins from the U. S. Dept. of Agricul- ture; Farmers' Bulletin 247, "The Control of the Codling Moth and Apple Scab;" Bulletin 35, New Series, Bureau of Entomology, "Report on the Codling M
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 352 Hafidbook of Nature-Study 7. How do the nuthatches, downy woodpeckers and chickadees help us in getting rid of the codHng moth? 8. Write an essay on the hfe history of the codHng moth, the damage done by it, and the best methods of keeping it in check. References—The foUowing bulletins from the U. S. Dept. of Agricul- ture; Farmers' Bulletin 247, "The Control of the Codling Moth and Apple Scab;" Bulletin 35, New Series, Bureau of Entomology, "Report on the Codling Moth Investigations," price 10 cents; Bulletin 41, "The Codling Moth," 105 pages, 15 cents, by Special Field Agent, C. B. Simp- son; Bulletin 68, Part VII, "Demonstration Spraying for the Codling Moth," price 5 cents. The Spraying of Plants, Lodeman, Macmillan Company; Economic Entomology, Smith. LEAF-MINERS Teacher's Story "And there's never a leaf nor a blade too mean To be some happy creature's palace". —Lowell. rAY not Lowell have had in mind, when he wrote these lines, the canny little creatures which find sustenance for their complete growth between the upper and lower surfaces of a leaf, which seems to us as thin as a sheet of paper. To most children, it seems quite incredible that there is anything between the upper and lower surfaces of a leaf, and this lesson should hinge on the fact that in every leaf, however thin, there are rows of cells containing the living substance of the leaf, with a wall above and a wall below to protect them. Some of the smaller insects have discovered this hidden treasure, which they mine while safely protected from sight, and thus make strange figures upon the leaves. Among the most familiar of these are the serpentine mines, so called because the figure formed by the eating out of the green pulp of the leaf, curves like a serpent. These mines are made by the caterpillars of tiny moths, which have long
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