CONTENTS 
INTRODUCTION. 
Page. 
Physiography 3 
Climate 8 
General aspect of the vegetation 21 
a. Plant formation in Part 1 21 
b. Plant formation in Part II 29 
c. Plant formation in Part III 34 
d. Plant formation in Part IV 36 
ZONATION OF THE PLANT- REGIONS 38 
a . Prairie region 39 
b. Deciduous broad leaved tree region. 72 
c . Ever-green conifer region 88 
d . Larix region. 93 
e. Salix-Alnus region 95 
/. Higher grass region 97 
General aspect of the flora of the mountain. ... 101 
Influence of fire on the present vegetation. ... 107 
On the absence of Pin us pumila on the mountain. 108 
Summary 109 
Index Ill 
