INTRODUCTION g 
and stratigraphic geology, but no special consideration 
is here given to this part of the subject.’ 
1 The reason for this omission is that I have already treated this subject 
in my Elementary Physical Geography, and those who wish may find it there. 
It is my hope that the teacher may see fit to depart from the time-honored 
custom of separating geology from physical geography. It seems to me that 
an intelligent study of the land demands a knowledge of geology, and there- 
fore that this should precede the physiographic part of physical geography. 
According to this idea, in cases where a year or more can be given the subject 
as a whole, the order of study should be: air, ocean, geology, and land form. 
