^UTHOK'S KDITION. 



DEPARTMENT OP THE INTERIOR. 



UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. 



F. V. HAYDEN, U. S. Geologist-in-Charge. 



OSTEOLOGY 



LANIUS LDDOVICIANUS EXCUBITORIDES. 



Dr. R. W. SHUFELDT, U. S. A. 



EXTRACTED FROM THE BULLETIN OF THE SURVEY, Vol. VI, No. 2. 



Washington, September 19, 1881. 



