. Elementary zoology. Zoology. 196 ELEMENTARY ZOOLOGY by means of gills which do not project from the outside of the body, as do the gills of other aquatic insects, but line the inner wall of the posterior or rectal part of the. Fig. 58.—A dragon fly. Sympeti'um Fig. 59.—The young (nymph) of the illotimi, common in California. dragon-fly, Sympetmm illotum. (From life.) (From Jenkins and Kellogg.) alimentary canal. Water enters the canal through the anal opening and bathes these gills, bringing oxygen to them and taking away carbonic acid gas. The aquatic. Please note that these images are extr
. Elementary zoology. Zoology. 196 ELEMENTARY ZOOLOGY by means of gills which do not project from the outside of the body, as do the gills of other aquatic insects, but line the inner wall of the posterior or rectal part of the. Fig. 58.—A dragon fly. Sympeti'um Fig. 59.—The young (nymph) of the illotimi, common in California. dragon-fly, Sympetmm illotum. (From life.) (From Jenkins and Kellogg.) alimentary canal. Water enters the canal through the anal opening and bathes these gills, bringing oxygen to them and taking away carbonic acid gas. The aquatic. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York : H. Holt and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
