viii CONTENTS TO VOLUME XXI 
Tue VoLcANOES AND Rocks OF PANTELLERIA. I. Henry S. 
Washington s Q : ; : : ; 
Loc oF WELL OF PENNSYLVANIA SALT Company, DeEtTRoIT, MIcH. 
William H. Fry 
REVIEWS 
NUMBER VIII 
DIASTROPHISM AND THE FORMATIVE Processes. IV. REJUVENATION 
OF THE CONTINENTS. T. C. Chamberlin : : : 
THE VOLCANOES AND Rocks OF PANTELLERIA. II. Henry S. 
Washington : ‘ ’ 5 : i ‘ d 
A StuDy IN THE PETROLOGY OF SEDIMENTARY Rocks. G. Sherburne 
Rogers 
ON THE RELATIONSHIP OF THE SOUTH AFRICAN PERMIAN REPTILES 
TO THOSE OF RusstA. R. Broom 
SomE ParTLyY DISSECTED PLAINS IN Jo Daviess County, ILLINOIS. 
Arthur C. Trowbridge 
THE SKULLS OF ARAEOSCELIS AND CASEA, PERMIAN REPTILES. Samuel 
W. Williston 
VARIATIONS OF GrActERS. XVIII. Harry Fielding Reid 
REVIEWS A : 
INDEX TO VOLUME XXI 
673 
683 
714 
728 
731 
743 
748 
754 
759 
