CONTENTS 
V 
ILLUSTRATIONS 
Pirates 
, i. Portrait of Thomas Nuttall. 
ii. Map of Pennsylvania Anorthosite. 
iii. New Terebratula from Maryland. 
iv. White Stone Peak Antimony Deposits. 
V. Portrait of Rolin D[aniel] Salisbury. 
vi. Bronze Bust of Frank Springer. 
vii. Map of Cambro-Ordovicic Rocks of South America. 
viii. Map of Siluric Areas of South America. 
ix. Map of Devonic Deposits of South America. 
X. Map of Late Carbonic Tracts of South America. 
xi. Map of Permian Formations of South America. 
xii. Map of Triassic Sedimentation of South America. 
xiii. Map of Jurassic Belt of South America. 
xiv. Map of Cretacic Border of South America. 
XV. Map of Early Tertic Deposits of South America. 
xvi. Map of Late Tertic Deposits of South America. 
xvii. Correlation of Arizona Geological Formations, 
xviii. Portrait of Edwin James. 
xix. Rainbow Natural Bridge of Utah. 
XX. Augusta Natural Bridge of Utah. 
xxi. Utah Natural Arches. 
xxii. Intrenched Meanders of Rio San Juan in Utah, 
xxiii. Scarp of Great Hurricane Fault. 
xxiv. Corridor in Bryce Canyon, Utah. 
XXV. Goblet of Venus; lathe-work of Winds, 
xxvi. Canyon of Grand River, 
xxvii. Pinacles of Monument Valley, Utah, 
xxviii. Zion Canyon, Utah. 
xxix. Sketch-Map of Mazatzal Peak Region, Arizona. 
XXX. Sketch-Map of Mazatzal Quartzites of Del Rio. 
xxxi. Unconformity of Cambric and Proterozoic Quartzites, 
xxxii. Portrait of William John McGee, 
xxxiii. Bridge between Oldest and Youngest Glacial Deposits, 
xxxiv. Map of Wisconsin-Patrician Glacier in Minnesota. 
XXXV. Map of Wisconsin-Patrician Glacier in Recession, 
xxxvi. Map of Labradorian and Kewatin Glaciers in Minnesota, 
xxxvii. Cross-section of Till Sheets and Loess at Des Moines. 
I 
