. The study of animal life. Zoology. 244 The Study of Animal Life part m (Chcetoderma, Neomenia) where an incipient shell is represented only by a few spicules or plates of lime. The shell is made by the folded skin or "mantle''; it consists for the most part of carbonate of lime along with a complex organic substance called conchiolin; it shows three layers, of which the outermost is somewhat soft and without lime, while the innermost shines with mother-of-pearl iridescence. The whole product is a cuticle—something formed from the skin; its varied colours and forms are beautiful ; it is
. The study of animal life. Zoology. 244 The Study of Animal Life part m (Chcetoderma, Neomenia) where an incipient shell is represented only by a few spicules or plates of lime. The shell is made by the folded skin or "mantle''; it consists for the most part of carbonate of lime along with a complex organic substance called conchiolin; it shows three layers, of which the outermost is somewhat soft and without lime, while the innermost shines with mother-of-pearl iridescence. The whole product is a cuticle—something formed from the skin; its varied colours and forms are beautiful ; it is a protective shield ; but there are many. 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 Thomson, J. Arthur (John Arthur), 1861-1933. New York, C. Scribner's sons [printed at the Edinburgh press]
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1892
