. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. 282 MANUAL OF ZOOLOGY. The two fundamental structures of the " ccenoecium " of a Polyzoon—y\z., the immediately investing sac, and its secon- dary investment, are sometimes termed the " endoderm " 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 Nicholson, Henry Alleyne, 1844-1899. New
. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. 282 MANUAL OF ZOOLOGY. The two fundamental structures of the " ccenoecium " of a Polyzoon—y\z., the immediately investing sac, and its secon- dary investment, are sometimes termed the " endoderm " 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 Nicholson, Henry Alleyne, 1844-1899. New York : D. Appleton
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Keywords: ., bookauthorni, bookcentury1800, bookdecade1870, booksubjectzoology
