ON THE TYPICAL LAURENTIAN AREA OF CANADA. MELILITE-NEPHELINE-BASALT AND NEPHELINE-BASANITE FROM SOUTHERN TEXAS. SOME DYNAMIC PHENOMENA SHOWN BY THE BARABOO QUARTZITE RANGES OF CENTRAL WISCONSIN. THE CHEMICAL RELATION OF IRON AND MANGANESE IN SEDIMENTARY ROCKS. SOME RIVERS OF CONNECTICUT. 33 Studies for Students. GEOLOGICAL HISTORY OF THE LAURENTIAN BASIN. Analytical Abstracts of Current Literature. 61 Transcriber’s Note Cover and Table of Contents created by Transcriber and placed in the Public Domain. THE |