. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. PROCTOOAEUM Fig. 224. Transverse sections through frog embryo shortly after closure of the neural tube, as indicated in fig. 223E. This embryo is slightly older than that shown in 223A-G. 467. 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 Nelsen, Olin E. (Olin Everett), b. 18
. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. PROCTOOAEUM Fig. 224. Transverse sections through frog embryo shortly after closure of the neural tube, as indicated in fig. 223E. This embryo is slightly older than that shown in 223A-G. 467. 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 Nelsen, Olin E. (Olin Everett), b. 1898. New York, Blakiston
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
