. Zoology : for students and general readers . Zoology. Pig. 301. —Embryo of a Water-beetle illydrophUus). E, egs; ; -ST, head ; ol, njiper lip; m, mouth ; an, antfrniLC ; ^j. man- dibles ; ^2' ^3' maxillfe ; J5, thorax ; &], h^^o-^, legs ; Ai-Ak,, ten pairs of rudimentary abdo- minal legs, of which all except Aj disappear before the inseci hatches ; a, anus,—Ai'ter Kowa- Fig. 302.—Profile view of embryo Honey-bee, lettering as in Fig. 301. BM^ nervous cord; oG, brain; Z*, digestive canal ; sch, the oeso- phagus ; 8t, stigmatal openings of the tracheal system ; iJ, heart.— After B
. Zoology : for students and general readers . Zoology. Pig. 301. —Embryo of a Water-beetle illydrophUus). E, egs; ; -ST, head ; ol, njiper lip; m, mouth ; an, antfrniLC ; ^j. man- dibles ; ^2' ^3' maxillfe ; J5, thorax ; &], h^^o-^, legs ; Ai-Ak,, ten pairs of rudimentary abdo- minal legs, of which all except Aj disappear before the inseci hatches ; a, anus,—Ai'ter Kowa- Fig. 302.—Profile view of embryo Honey-bee, lettering as in Fig. 301. BM^ nervous cord; oG, brain; Z*, digestive canal ; sch, the oeso- phagus ; 8t, stigmatal openings of the tracheal system ; iJ, heart.— After Bliitschli. liquid food and but little of it, while its surroundings and mode of life are entirely changed with its acquisition of wiugs. 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 : Henry Holt
Size: 1006px × 2483px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1879
