. Lessons in nature study. Nature study. 46 NATURE STUDY. ' Breeding cages" can be made iu various ways. One of the most gen- erally useful consists of a flower-pot in which the food plant of the insect to be bred is growing. The plant should be inclosed by a lantern globe or wide lamp chimney whose top is covered over with mopquito netting (fig. 23). If the food plant cannot be grown in the pot (if for example it is some shrub or tree) the flower-pot may be filled with wet sand, or better, a wide-mouthed bottle filled with the wet sand and .sunk into the soil in the flower-pot, and leaf-
. Lessons in nature study. Nature study. 46 NATURE STUDY. ' Breeding cages" can be made iu various ways. One of the most gen- erally useful consists of a flower-pot in which the food plant of the insect to be bred is growing. The plant should be inclosed by a lantern globe or wide lamp chimney whose top is covered over with mopquito netting (fig. 23). If the food plant cannot be grown in the pot (if for example it is some shrub or tree) the flower-pot may be filled with wet sand, or better, a wide-mouthed bottle filled with the wet sand and .sunk into the soil in the flower-pot, and leaf- covered branches be stuck into the sand. Fig. 23. Lamp^^imney ^^d Tbe food shouM be renewed as oftcn as flower-pot breeding cnK-e. necessarv Professor Comstock recommends a cage made by fitting a pane of glass into one side of an empty soap-box. A board, three or four inches wide, should be fastened below the glass so that a layer of soil may be placed in the lower part of the cage, and the glass shonld be fitted so that it may slide and thus serve as a door (fig. 24). Many caterpillars when ready to pupate burrow into the soil, and transform underground. For this reason it is neces- sary to have a layer of soil in the flower-pot cage or the boxcage if such caterpillars or other larvae of similar habit are being bred. After the caterpillars have gone into the soil to pupate, they may be dug for and the pupae found and examined. The pupae should be buried again, and the issuance of the moth or butterfly (or other insect) be awaited. Cocoons may be kept suspended by strings in wooden boxes. The interior of the box should contain a little soil which should. 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 Jenkins, Oliver Peebles; Kellogg, Vernon L. (Vernon Lyman), 1867-1937. joint author. San Francisco, The Whi
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