. Elements of zoölogy. Zoology. Fig. 158.—Showing compound and sim- ple eyes of fly. A, head, enlarged 8 times : c, com- pound eye; s, sim- ple eyes. B, por- tion of the surface of a compound eye, highly magnified. Fig. 157.—Tongue of blow-fly. (Fig. 156) about fourteen days. The proboscis of the fly (Fig. 157) is a fleshy, tongue-like organ bent under the head when at rest. In flying, the wings describe a figure 8 in the air, making 19,800 revolu- tions in a minute, or 9,400 simple oscillations. The eyes (Fig. 158) are both compound and simple. The feet (Fig. in) have delicate pads for clingi
. Elements of zoölogy. Zoology. Fig. 158.—Showing compound and sim- ple eyes of fly. A, head, enlarged 8 times : c, com- pound eye; s, sim- ple eyes. B, por- tion of the surface of a compound eye, highly magnified. Fig. 157.—Tongue of blow-fly. (Fig. 156) about fourteen days. The proboscis of the fly (Fig. 157) is a fleshy, tongue-like organ bent under the head when at rest. In flying, the wings describe a figure 8 in the air, making 19,800 revolu- tions in a minute, or 9,400 simple oscillations. The eyes (Fig. 158) are both compound and simple. The feet (Fig. in) have delicate pads for clinging upon smooth surfaces. Fleas (Pulicidce). — The fleas (Fig. 160) are wingless, have a compressed body, and. 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
