CONTENTS

On The Typical Laurentian Area of Canada[325]
Melilite-Nepheline-Basalt and Nepheline-Basanite from Southern Texas[340]
Some Dynamic Phenomena Shown by the Baraboo Quartzite Ranges of Central Wisconsin[347]
The Chemical Relation of Iron and Manganese In Sedimentary Rocks[356]
Some Rivers of Connecticut[371]
Geological History of the Laurentian Basin[394]
Editorials[408]
Reviews[410]
Analytical Abstracts of Current Literature[419]
Acknowledgments[423]