. Animal biology. Biology; Zoology; Physiology. 356 ANIMAL BIOLOGY the execretory and reproductive systems. One has but to recall that, on an earlier page, it was possible to describe in general terms these systems as they exist throughout the Vertebrate series — in forms as obviously different as Fish and Man. They are all fundamentally the same. (Figs. 102-110, 121, 129, 141, 227, 228.) Turning to the Invertebrates, we may remind the reader that all the appendages of the Crayfish are built on the same simple. Please note that these images are extracted from scanned page images that may have


. Animal biology. Biology; Zoology; Physiology. 356 ANIMAL BIOLOGY the execretory and reproductive systems. One has but to recall that, on an earlier page, it was possible to describe in general terms these systems as they exist throughout the Vertebrate series — in forms as obviously different as Fish and Man. They are all fundamentally the same. (Figs. 102-110, 121, 129, 141, 227, 228.) Turning to the Invertebrates, we may remind the reader that all the appendages of the Crayfish are built on the same simple. 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 Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company


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