. Elementary lessons on insects. Insects. 22 ELEMENTARY LESSONS ON INSECTS LA BORA TOR Y PROGRA M A. Living Specimens. I. See the living insects in the dishes of stuff from the pond, especially three small kinds that will be useful as transparent objects for the microscope. Chase them around the edges of the dish, and observe their manner of swimming: 1. Damselfly nymphs, that swim by sculling with the. Fig. 7.—A dish of water with floating algae, weeds, etc., dipped from the pond, a, a mayfly nymph; b, a damselfly nymph; c, a midge larva: d, the flocculent dwelling tube of a smaller midge lar
. Elementary lessons on insects. Insects. 22 ELEMENTARY LESSONS ON INSECTS LA BORA TOR Y PROGRA M A. Living Specimens. I. See the living insects in the dishes of stuff from the pond, especially three small kinds that will be useful as transparent objects for the microscope. Chase them around the edges of the dish, and observe their manner of swimming: 1. Damselfly nymphs, that swim by sculling with the. Fig. 7.—A dish of water with floating algae, weeds, etc., dipped from the pond, a, a mayfly nymph; b, a damselfly nymph; c, a midge larva: d, the flocculent dwelling tube of a smaller midge larva; e, a young water strider (runs on the surface); /, a very small dragonfly nymph; g, a young 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 Needham, James G. (James George), 1868-1956. Springfield, Ill. , Baltimore, Maryland, C. C. Thomas
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Keywords: ., bookcentury1900, bookcollecti, bookdecade1920, booksubjectinsects
