of Several Places in the United States. 341 
At Richmond, at a place about 450 feet S. 25° E. of the Capitol. 
For the Latitude. 
1831, Nov. 3d. Observed 18 altitudes of the Sun upon or near the 
meridian ; resulting latitudes, 
37° 31’ 87.4” 5 712.5” ; 72.7” ; 16.5” ; 15.5”; 71.0” ; 66,8”; 65.3” ; 80.4” 
« “ 79.5; 87.5; 59.4; 56.5. Mean of the 13 0bs, 37° 32’ 13.2” 
Nov. 5th. Observed 18 altitudes of the Sun upon or near the meridian; 
resulting latitudes, 
STD 2 A ona 2010! sh LO aes 8B! 3 1a 5.6"; 3 LG 5, Lets 
« «© 198; 21.9; 9.7; 17.5; 9.9; 142; 15.0; 13.6; 4.0 
Mean of the 18 and ofthe 31_—«. é : : : 37° 32/ 13.2” 
The reduction to the Capitol is ; : : : 5 + 3.8 
Hence the latitude of the Capitolis . : : ae wom gee Alia. 
For the Longitude. 
b. m. sec. 
Nov. 2d. Chronometer fast of mean time at Richmond . 0 23 27.0 
© Chronometer fast of mean time at Norfolk, same day, 018 526 
0 4 34.4 
5 5 15.1 
Difference of meridians 
Longitude of Norfolk, as above 
Longitude of Richmond ; pn dis ‘ : ; 5 9, 49.5 
2dly. Chron. fast of mean time at Richmond, Nov. 18th, 023 35.7 
Chronometer fast of mean time at the Observatory of the 
University of Virginia, the same day, 0 27 52.0 
Difference of meridians . : : 0 4 16.3 
Long. of the Observatory by eclipses of 1791, 1811, and 1831, 514 5.9 
Longitude of Richmond ; : : : : 5 9 49.6 
3dly. Chronometer fast of mean time at a house in 
F street, Washington, Dec. 8th, . : j 0 22 44,2 
Chronometer fast of mean time at Richmond, the same day 0 24 21.9 
Difference of meridians : 2 0 1 37.7 
Longitude of the house in F street 5.1% W. 28” N. of the ” 
Capitol : : ; ° 5 8 123 
Longitude of Richmond j 5 9 50.0 
81 
