CONTENES OF VOLUME XVT7T 
NUMBER I 
ON THE ORIGIN OF THE AMPHIBOLITES OF THE LAURENTIAN AREA OF 
CanaDA. Frank D. Adams 
A MiocENE FLORA FROM THE VIRGINIAN COASTAL PLAIN. Edward W. 
Berry 
EROSIONAL ORIGIN OF THE GREAT BAstn RANGES. Charles R. Keyes . 
A CONTRIBUTION TO A MONOGRAPH OF THE EXTINCT AMPHIBIA OF 
NortH AmeERIcA. NEW FORMS FROM THE CARBONIFEROUS. Roy 
L. Moodie 
THE ANCIENT KoBuk GLACIER OF ALASKA. Oscar H. Hershey . 
REVIEWS . 
NUMBER II 
PRINCIPLES OF CLASSIFICATION AND CORRELATION OF THE PRE-CAMBRIAN 
Rocks. I. Charles Richard Van Hise 
Tue BAsIs OF PRE-CAMBRIAN CORRELATION. II. Frank D. Adams 
THe PROBABILITY OF LARGE METEORITES HAVING FALLEN UPON THE 
EARTH. LHe i Schwarz 
EROSION AND DEPOSITION IN THE SOUTHERN ARIZONA BOLSON REGION. 
C. F. Tolman 
THE WAVERLY FORMATIONS OF East CENTRAL Kentucky. William 
Clifford Morse and August F. Foerste 
NOTES ON THE Point Hope Spit, ALASKA. E. M. Kindle 
Eprrorran, R-D: Ss. 
REVIEWS . 
NUMBER III 
EvoLuTIon OF EARLY PALEOzoIc FAUNAS IN RELATION TO THEIR EN- 
VIRONMENT. III. Charles D. Walcott 
PALEOGEOGRAPHIC Maps oF NortH America. Bailey Willis 
PHYSICAL AND FAUNAL EVOLUTION OF NORTH AMERICA DURING ORDO- 
VICIC, SILURIC, AND EARLY Dervonic Time. IV. Amadeus W. 
Grabau 
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