= eee. 
PHYSICAL anv LITERARY. 153 
_ _ is the log. tang. of 29° 10°.081573, half 
the difference of the angles CSB, CBS; 
therefore the angle CSB, that is, the 
angle ACD, is 59° 10°.081873 3; there- 
fore the anomaly of the excentric is near- 
ly 59°10 .081873. 
EXAMPLE VIL. 
In the orbit of Venus, the mean di- 
{tance is to the excentricity as 10000000 
to 6y855. Suppofe the mean anomaly 
reckoned from the aphelion to be 60°, it 
is required to find the anomaly of the ex- 
centric. 
The log. tang. of 30° is '9.7614394 
The diff. of the logs, of AS,SP | 
is 0-0060677 
The difference 9°7553717 
is the log. tang. of 29° 39 «2739959, half 
the difference of the angles CSC, CBS; 
therefore the angle CSB, that is, the angie 
- ACD, is 590 39%2739959 3 therefore the 
VoL. H. © U- anomaly 
