vm 



CONTENTS OF VOLUME XXV 



NUMBER VIII 



The Active Volcanoes of New Zealand. E. S. Moore 

 Foothills Structure in Northern Colorado. Victor Ziegler 

 On the Geology of the Alkali Rocks in the Transvaal. H. A 

 Brouwer 



Petrographical Abstracts and Reviews 



Reviews 



Recent Publications .... 

 Index to Volume XXV 



Albert Johannsen 



693 



7i5 



741 



779 

 782 

 788 

 789 



