MEMOIRS OF THE PEABODY MUSEUM OF NATURAL HISTORY 



VOLUME III, PART 3 



A REVISION 



of th< 



GERATOPSIA 



OR HORNED DINOSAURS 



BY 



RICHARD SWANN LULL 



STERLING PROFESSOR OF PALEONTOLOGY 



AND DIRECTOR OF PEABODY MUSEUM, 



YALE UNIVERSITY 



LVX ET 



cHntt 

 a'ipm 



VERITAS 



NEW HAVEN, CONN. 

 !933 



