• • 
Ae”T nAe^ 
( 95 ) 
• I - „ 
V + —^X See. 
2 » 
+ C + jx ^ xC^ *""• j/» See. 
£f(r. - - • 
.4“ X t X C^* * e* SCc. and therefore z = cil 
. .. ^ 
(/ ^ 
After the fame 
• » • 
' manner you will find that c = z y + — , 
X zx"" ^ 
- ~ A^« + Sec. = 
+,BXATi^ 
SCc. 
z+ —y 
• • 
o 
