. Animal biology; Human biology. Parts II & III of First course in biology. Biology. FIG. 173. — Metamorphosis of flea. **-- o FlG. 172. — Metamor- phosis of house fly (enlarged).. FIG. 174. — Louse and its eggs attached to a hair. Natural size 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York, The Macmillan Co.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1910