AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[THIRD SERIES.] 
7 
Art. X.—The Colorado Plateau Province as a Field for Geologi- 
cal Study ; by G. K. GILBERT. 
[Continued from page 24.] 
_ [It has happened that the division of this paper into parts has 
interrupted the sense, and I shall therefore have to ask the reader 
who would understand this page to refer again to the figures on 
page 23 of this volume. 
: a gentle dip to the north. Its cap of Car- 
boniferous limestone is divided in the foreground by the cafion 
h 
erally to call attention, are: 
ay 
aed 
