Articles:

J. EMILIO RAMIREZ

The new seismic station at Galerazamba, Colombia
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 1-5. [PDF]  

ROSS R. HEINRICH

The Mississippi Valley earthquake of June 30, 1947
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 7-19. [Abstract] [PDF] [References]  

RICHARD E. INGRAM

Note on the magnification curve of a seismograph recording through a galvanometer
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 21-23. [PDF] [References]  

IVAN TOLSTOY and MAURICE EWING

The T phase of shallow-focus earthquakes
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 25-51. [Abstract] [PDF] [References]  

MAURICE EWING, IVAN TOLSTOY, and FRANK PRESS

Proposed use of the T phase in tsunami warning systems
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 53-58. [Abstract] [PDF] [References]  

Seismological notes
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 59-75. [PDF] [References]  

PERRY BYERLY

Report of the annual election of the Seismological Society of America, January 7, 1950
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 77. [PDF]  

D. S. CARDER

Minutes of the annual meeting of the Eastern Section, Seismological Society of America, June 10 and 11, 1949
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 78-80. [PDF]  

Review:

G. D. L.

Seismicity of the earth and associated phenomena: by B. Gutenberg and C. F. Richter (Princeton University Press, 1949). ix + 273 pp. $10.00
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 1950 40: 76. [PDF] [References]  

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