. Zoology for high schools and colleges. Zoology. Fig. 296. — Embryo of a Water-beetle (Hydrophilus). E, egg ; K, head ; ot, upper lip; m, moutli; aw, antennae ; ^]. man- dibles ; k^, &g, maxillpE; B, thorax ; &], 65, Og, legs ; hi-hio, ten pairs of rudimentary abdo- minal legs, of which all except A, disappear before the insect hatches ; a, anus,—After Kowa- Fig. 297. —Profile view of embryo Honey-bee, lettering as in Fig. 296. BM. nervous cord; oG, brain; 7?, digestive canal ; sch, the (Eso- phagus ; Si^ stigmatal openings of the tracheal system; A, heart.— After BlUtschli.
. Zoology for high schools and colleges. Zoology. Fig. 296. — Embryo of a Water-beetle (Hydrophilus). E, egg ; K, head ; ot, upper lip; m, moutli; aw, antennae ; ^]. man- dibles ; k^, &g, maxillpE; B, thorax ; &], 65, Og, legs ; hi-hio, ten pairs of rudimentary abdo- minal legs, of which all except A, disappear before the insect hatches ; a, anus,—After Kowa- Fig. 297. —Profile view of embryo Honey-bee, lettering as in Fig. 296. BM. nervous cord; oG, brain; 7?, digestive canal ; sch, the (Eso- phagus ; Si^ stigmatal openings of the tracheal system; A, heart.— After BlUtschli. liquid food and but little of it, while its surroundings and mode of life are entirely changed with its acquisition of wings. Thus the butterfly leads three different lives, differ- ing greatly in structure, externally and internally, at these three periods, and with different 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York, H. Holt and Company
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology
