TABLE II. 
1907 - 8 .] 
Classification of Igneous Rocks. 
91 
© 
8 
© 
e 
8 
© 
e 
© 
e 
© 
e 
r© 
e 
© 
8 
i© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
© 
8 
Groups. 
