. Elementary text-book of zoology. Zoology. 540 INSECTA. folds are then formed ; these lead to the formation of the embryonic membranes, which are so characteristic of insect development. In. 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 Claus, Carl, 1835-1899; Sedgwick, Adam, 1854-1913; Sinclair, F. G. (Frederick Granville), b. 1858. New York : Macmillan

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884