316 CARNEGIE INSTITUTION OF WASHINGTON. 



MISCELLANEOUS MATTERS. 



Site at Washington. — In the early part of 1921 an additional strip of 

 land of about 75,000 square feet was purchased in order to protect the 

 work performed in the Experiment Building and in the Standardizing 

 Observatory from possible disturbing influences. The total area of 

 the site at Washington is at present about 8f acres, and it is now 

 bounded on all sides by streets, already constructed or contemplated. 



American Section of Terrestrial Magnetism and Electricity. — The 

 following papers were presented by members of the Department at the 

 annual meeting on April 18, 1921, before the Section of Terrestrial 

 Magnetism and Electricity of the American Geophysical Union : 



S. J. Barnett: A sine galvanometer for determining in absolute measure the horizontal 

 intensity of the Earth's magnetic field. 



L. A. Bauer: On measures of the Earth's magnetic and electric activity and correlation 

 with solar activity. 



S. J. Mauchly : Recent results derived from the diurnal- variation observations of the atmos- 

 pheric-electric potential gradient aboard the Carnegie. 



The officers of the section, as in the case of last year, are: Louis A. 

 Bauer, chairman (also vice-chairman of the American Geophysical 

 Union) ; W. F. G. Swann, vice-chairman, and J. A. Fleming, secretary. 



Section of Terrestrial Magnetism and Electricity of the International 

 Geodetic and Geophysical Union. — The Director has continued through- 

 out the year his duties as secretary of the International Section and as 

 director of the central bureau. Arrangements for the triennial meet- 

 ing of the Section and of the Union at Rome in April 1922 are under 

 way. 



National Research Council. — Various duties have been performed by 

 Messrs. Barnett, Bauer, Fleming, Mauchly, and Peters, in connection 

 with committees of the Council. 



