PHYSICAL anv LITERARY. 107 
Variation of the Par. Lon. 240. 
ift Part = VGX == 
r KY rot I 
“4409 vrhen the fun is in jee vasa ge mt 
GV XS, merid. ang. Fatt AM. 
2 Welt PM. 
Variation of the Par. LAT. >a ©. 
MG x S, mer. ang, esi! contr. to the decl.© 
rt Part= z 
“GV yx cof. merid. ang. 
R 
od Part = 
aw im 
- Forenoon oh when the fun is in § a Q is pared De 
Afternoon a mh § wnen the fun is ais in§ ioe - Sq Ps 3 
t1. By art. 6. the part to be fubtracted 
from the apparent femid. © mutt bear the 
fame proportion to the whole, as the di- 
ftance of the vertex on the furface of the 
earth from its point on the difk, to the di- 
ftance of the points V, v; which i is nearly 
the fame with the femidiameter of the 
moon’s 
