. Adventures with animals and plants. Biology. Frog Turtle Chick Pig Man Fig. 502 (right) Embryos in later stages. As differen- tiation goes on, the embryo looks more and more like the 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 Kroeber, Elsbeth, 1882-; Wolff, Walter Harold, 1901-. Boston : D. C. Heath

---

Size: 2029px × 1231px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookpublisherbostondcheath, booksubjectbiology