ee 
PHYSICAL anv LITERARY. 147 
is the log. tang. of 17° 27°-7082672, half 
the difference of the angles CSD, CDS; 
the angle CDS or DCF, therefore, is 
3°16°858099. Again, as radius is to the 
fie of the angle BCD, fo is 57° Wiatonians 
&c. to the angle A. 
The log. of 57°.2957795, &ce is 1.7581226 
The log. fine of the angle BCD is 8.7874623 
eel 
The fum is 10 5455849 
The log. of rad. is 10.0000000 
‘The difference re 5455849 
is the log. of 3°.5122459; the angle A, 
therefore, is 3°. 30%.734754; the excefs of 
the angle BCD above the angle A is 
071325135. Again, as the fine of the 
angle BCD is to the sei 0 of the angle 
SDC or DCF, fo is 071325135 to hie an- 
gle DCG. 
The log. of 0%1325135is  —z.1222601 
The log. tang. of the angle SDC 
Bore is 8.7583537 
The fum is 7-8806138 
The 
