SECTION I. 



CATALOGUE OF THE TYPE SPECIMENS OF FOSSIL INVERTEBRATES 

 IN THE DEPARTMENT OF GEOLOGY, UNITED 

 STATES NATIONAL MUSEUM. 



By 



CHARLES SCHUCHERT, 



A.ssistecl fc>y 



W. H. DALE, T. W. STANTON, and R. S. BASSLER. 



23232—05 1 



