SECTION II. ASTRONOMY, METEOROLOGY, AND 

 SEISMOLOGY. 



ROBERT S. WOODWARD, Chairman. 



ANGEL CSAR RIVAS, Corresponding Secretary. 



Subsection A. Astronomy and Geodesy. 

 Subsection B. Meteorology and Seismology. 



Subsection A. 



FIRST SESSION, TUESDAY, DECEMBER 28, 19159.30 A. M. 



ROBERT S. WOODWARD, Chairman. 

 Address of Welcome by ROBERT S. WOODWARD. 



Astronomical Work in South America. S. I. BAILEY, Harvard College 

 Observatory, Cambridge, Mass. 



Status [of Magnetic Surveys in South America. L. A. BAUER, Director, 

 Department of Terrestrial Magnetism, Carnegie Institution of 

 Washington, Washington, D. C. 



Topographic Triangulation of the Right Margin of the Yaguaron and 

 Yaguaron Chico Rivers and the Arroyo de la Mina. JULIO S. 

 ROLETTI. (Read by SOLON I. BAILEY.) 



Work of Observatory at La Plata, Argentina. W. J. HusSEY, Director 



of Detroit Observatory, University of Michigan. 



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