CONTENTS 
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February Number 
Three Grand Discoveries oe Liee, by Charles Keyes 
Recency oe Origin oe the Andes, by Edward W. Berry 
Blister Hypothesis oe Laccolithic Mountains, by Charles Keyes 
. Upper Paleozoic Faunas oe Missouri, by Henry S. Williams 
Emerson Geological Loving Cup, by Charles Keyes 
Editorial : 
Return of an American Geologist, 49; First After-War Con- 
gres (^ologique International in Belgium, 51; Geological Men¬ 
tality in the Making, 53 ; My Last Meeting with Gilbert, 56 
Paleontological Geology; 
Derivation of South American Faunas, by F. B. Loomis, 61; 
Stratigraphy of Black Hills Tertiaries, by C. Keyes, 63 ; Affin¬ 
ities of Cannonball Fauna, by T. W. Stanton, 64; Lance and 
Union Formations are Mesozoic in Age,; by C. Schuchert, 65; 
Tertiary Aspects of Lance Beds, by W. Cross, 66; Floral Gon- 
tinuity of Lance and Union Sections, by F. H. Knowlton, 67; 
Phyletic Relations of Lance Vertebrates, by W. D. Matthew, 
68; Physiographic Setting of Earliest Tertiary, by C. Keyes, 
69; Basal Tertiary in Rocky Mountain Region, by C. Keyes, 
70; Orotaxial Relationships of Lance Series in Montana, by C. 
Keyes, 71; Biotic Significance of Cannonball Fauna, by C. 
Keyes, 73; Ancient Lake Cannonball, by C. Keyes, 74, North¬ 
ernmost Extension of Marine Eocene Beds in Mississippi Em- 
bayment, by E. W. Berry, 74; World’s Scarcest Crinoids, by 
C. Keyes, 76 
Dynamical Geology: 
Origin of Desert Ranges of Mexico, by J. E. Spurr, 79, Min¬ 
imum Span of Isostatic Effect, by C. Keyes, 79; Changing 
Sphericity of Our Earth, by C. Keyes, 81; Composite Nature of 
Rock Mass-movement, by C. K. Leith, 84; Discovery of Uil- 
bert’s Star, by C. Keyes, 86; Major Telluric Stresses Initiated 
by Diminishing Rate of Earth’s Rotation, by C. K^es 87; 
Mount Elburz, High Point of Europe, Photo by H. F. Reid, 88; 
Continental Dynamics, by C. Keyes, 88; Geologic Directrix of 
Isostasy, by C. Keyes, 90. 
March Number 
IsosTATic Theory; and Applied Geology, by Charles Keyes 
Glacial Man in America, by Arthur M. Miller 
New Mexican Laccolithic Structures, by Charles Keyes 
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97 
107 
109 
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