Ill 
by Means of two Altitudes of the Sun. 
ist observation. Time from the argument of ist table - 1 8' 14", by clock 19' 24" 
4th, 1826 1944 
Near log. value of g b from ist table 3,296 36 40 39 8 
gb 3,276 36 40 
2)6,572 Error in time =2 2 28 
First log. value of gb - - 3,286 
2d observation. Time from the argument of ist table - i& 12", by clock 17' 40" 
3d 1640 1753 
3 2 5 2 35 33 
Near log. value of g - b from ist table 3,294 32 52 
gb ! 3,264 
Error in time = 2 41 
2)6,558 
Second log. value of g. b - - 3,279 
Mean - - 3,282 
Log. value of gc - 3,218 
I Difference ,064 producing in 2d tab. i' 10" 
Lat. corrected — 54 0 27' 50" 
We now take the same example again, and apply the second 
method of computing the area gb, and the formula —j~ in de- 
termining the area gc. 
