The Standard Natural History. 



6 Vols. Im^ "rial 8vo. Fully Illustrated. 



By about fifty leading American scientists. J. S. Kingsley, Editoi, ; 

 Prof. E. D. Cope, Dr. A. S. Packard, and Prof. F. W. Putnam, I 



i 



Advisory Editors. j 



PROSPECTUS FURNISHED ON APPLICATION, 



S. S, C^SSI]SrO Sz> CO., F-ablisliers, 



BOSTON, MASS. 



Ar^ic/e, .G3LE0PTERA. 



Fro7n Vol. 2. 



Pages 297-402. 



By OR. GEORGE DIMMOOK. 



