PHYSICAL AND LITERARY, igj: 



fore the angle CDS, that is-the -angle DCF, 

 is 4'.Q95698i. --.o.V "^ 



Again, as tHe radius is to the fine of 

 5'.o8o3i86, fo is 57° 2997795, &c. the 

 number of degrees in an an^le fubtended by 

 an arc equal to the radius, to. the number of 

 decrees and minutes in an an?le fubtended 

 by an arc equal to' the fine of 5'.o8o3i86, 



The log. of 57°. 2957795 is 1.7581226 

 The log. fine of 5'.o8o3i86 is 7-16333 13 



The fum is 8.9214539 



The log. of radius is 10.0000000 



The ■ difference — 2.9214539 



is the log. of 5^.0073 162, the number of 

 minutes contained in the angle A ; the excefs 

 therefore of the angle BCD, above the angle 

 A, is o'.0930024. Again, as the fine of 

 the angle BCD is to the tangent of the angle 

 PCF, fo is ©'.0930024 to the angle DCG. 

 The log. of o'.o93oo24 is — 2.9684941 

 The log. tang, of the angle DCF is 7.1622795 



The fum is 6.1307736 



yhe log. fine of the angle BCD is 7-1633313 



*yhe difference ' 2.9674423 



. is 



