. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 330 INSECT LIFE. combining a large lamp-chimney with a small flower- pot (Fig. 289). Aquaria.—For the breeding of aquatic insects aquaria are needed. As the ordinary rectangular aquaria are expensive and are liable to leak, we use glass vessels instead. Small aquaria can be made of jelly-tumblers, glass finger-bowls, and glass fruit-cans, and larger aquaria, of the form shown in Fig. 291, can be obtained of some dealers. A good substitute for th
. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 330 INSECT LIFE. combining a large lamp-chimney with a small flower- pot (Fig. 289). Aquaria.—For the breeding of aquatic insects aquaria are needed. As the ordinary rectangular aquaria are expensive and are liable to leak, we use glass vessels instead. Small aquaria can be made of jelly-tumblers, glass finger-bowls, and glass fruit-cans, and larger aquaria, of the form shown in Fig. 291, can be obtained of some dealers. A good substitute for these is what is known as a battery-jar. There are several sizes of these, which can be obtained of most deal- ers in scientific apparatus. To prepare an aquarium, place in the jar a layer of sand ; plant some water plants in this sand, cover the sand with a layer of gravel or small stones, and then add the required amount of wa- ter carefully so as not to dis- turb the plants or to roil the water unduly. The growing plants will keep the water in good condi- tion for aquatic animal Hfe, and render changing of the water unnecessary, if the animals in it live natu- rally in quiet water. Among the more available plants for use in aquaria are the following :— Waterweed, Elodea canadensis. 'B\adderv,'ort,Utricularia (several species). Water-starwort, Callitriche (several species).. Fig. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. New York, D. Appleton and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomol, bookyear1901
