DEPARTMENT OF THE INTERIOE-tT. S; &EOLOGIOAL SURVET 

 I.: W. POWELL, BIBEGTOR 



SKETCH OF PALEOBOTANY 



LESTKR F. W^ARD 



I EXTRACT FROM f HE FtFTH ANNtTAL REPORT OF THE DIRECTOR, 1883-'84.] 



WASHIKGTON 



GOVERNMENT PRINTING OPFIC:^ 



