. Chapters on the natural history of the United States. Zoology. Fig. 71. Dorsal Aspect of the same Specimen of Sphyrapicus SHOWN IN FIG. 70, DESIGNED TO ILLUSTRATE ITS PTERTLOSIS. Life size, by the 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 Shufeldt, Robert W. (Robert Wilson), 1850-1934; Natural Science Association of America, New York. New York, Studer Bros

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1897