CONTENTS 
® 
INFLUENCE OF GEOLOGICAL FACTORS ON LONGITUDINAL SEIS- 
MIC VELOCITIES. By B. B. Weatherby and L. Y. Faust............. 
EFFECT OF MOISTURE UPON VELOCITY OF ELASTIC WAVES IN 
AMHERST SANDSTONE. By W. T. Born and J. E. Owen........... 
RECENT DEVELOPMENTS IN GRAVITY PROSPECTING ON GULF 
CONST By Olathe Sundin weer ee eee ee ee coe eerste 
PREDICTION OF OVERHANG AT BARBERS HILL, CHAMBERS 
COUNTY,TEXAS: ASTUDY IN QUANTITATIVE CALCULATIONS 
FROM TORSION-BALANCE DATA. By Donald C. Barton.......... 
EFFECT OF ANISOTROPY ON APPARENT RESISTIVITY CURVES. 
BoA S VEU CTIL SI eR UTS ON rn eon GSE ERIE es eo sce de Gy esn ado eNO 
STUDY OF STRUCTURE OF SUWA BASIN NEAR KYOTO, JAPAN, 
BY TORSION BALANCE. By M. Matuyama, Y. Fujita, and H. Higa- 
SCE ee ee ORE NL TER ABE TEAL SC OUE Sg At bia ce beat ate RESTS te) name ae 
DEEP ELECTRICAL PROSPECTING. By J. C. Karcher and Eugene 
VECTOR ILO L mere ee Ne ar eRe Ee: OE eG RS i ie nee Ea A Cea Ie 
NORMAL GEOTHERMAL GRADIENT IN UNITED STATES. By C. E. 
CGI OTE AUR co sts Re EO ene er aes OR aE eee eee ee 
A FORMULA FOR WEATHERING CORRECTION. By H. M. Rutherford. . 
A SEMI-GRAPHICAL METHOD OF DETERMINING DEPTHS OF 
MULTI-LAYER, DIPPING STRATA FROM SEISMIC TIME- 
BRAN AE Ion GUIRAVIE SOB va S20 OPH Crit Smee ne eee eee eee 
MAPPING OF GEOLOGICAL STRUCTURE BY THE REFLEXION OF 
SIP AS all GAVIA IISS sa vain Gold'st071 Serene ee ee er 
STUDY OF EMERGENCE ANGLE AND PROPAGATION PATHS OF 
SEISMIC WAVES. By Maurice Ewing and A. P.Crary.............. 
PAGE 
19 
25 
37 
58 
64 
78 
II7 
I2r 
THE RAPID ADJUSTMENT OF OBSERVATIONS IN A NETWORK 
OF GEOPHYSICAL STATIONS BY THE METHOD OF LEAST 
SQUARES SBy7E-elancasternonessee ri eeae enon aoe eee ee 
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