

MEMOIRS OF THE PEABODY MUSEUM OF NATURAL HISTORY 



VOLUME III, 1 A.R1 



A REVISION 



f th< 



or tne 



CERATOPSIA 



OR HORNED DINOSAURS 



BY 



RICHARD SWANN LULL 



STERLING PROFESSOR OF PALEONTOLOGY 



AND DIRECTOR OF PEABODY MUSEUM, 



YALE UNIVERSITY 



LVXET 



NEW HAVEN, CONN. 

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