. Nature-study; a manual for teachers and students. Nature study. i8o NATURE-STUDY. ground spiders, and beetles. In the attic we find more spiders, on the rafters the homes of the mud-wasps and the paper-wasps. In the clothes-press, perhaps, there are moths. Under the carpets are the carpet- beetles. Flies and mosquitoes are hard to keep out of the house. Ants invade the pantry. All these creatures come into the house in spite of the housewife's care and cleanliness. But if she is not so cleanly there may be cockroaches, fleas, and other more undesirable Fig. 40. insect-Net. g^jj^j jggg mcntio
. Nature-study; a manual for teachers and students. Nature study. i8o NATURE-STUDY. ground spiders, and beetles. In the attic we find more spiders, on the rafters the homes of the mud-wasps and the paper-wasps. In the clothes-press, perhaps, there are moths. Under the carpets are the carpet- beetles. Flies and mosquitoes are hard to keep out of the house. Ants invade the pantry. All these creatures come into the house in spite of the housewife's care and cleanliness. But if she is not so cleanly there may be cockroaches, fleas, and other more undesirable Fig. 40. insect-Net. g^jj^j jggg mcntionable insects. So there should be no difficulty in finding and collect- ing insects for nature-study. For this purpose the pupils should be provided with nets. The older pupils can make their own. An insect-net should be made of some light porous cloth, such as muslin, cheesecloth, or mosquito bar, made in the form of a sac about ten inches in diameter and about twice as long, fastened to a wire loop which is securely at- tached to a stick about four or five feet long. The dip-net may be smaller and should have a finer mesh. It is emptied by turning it in- side out. Aquatic insects, to be kept alive, must be carried in water in pails or bottles. Cans, paper boxes, and bottles serve to bring back ahve land insects for the school-room cages. But if the insects are to be mounted, they are immediately killed by placing them in the cyanide bottle. Each pupil in the higher grades should have one of these. Take a wide- i TO I sow 'â GKj. Fig. 41. Cyanide Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Holtz, Frederick Leopold, 1870-. New York, C. Scribner's Sons
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