112 Mr. Lax's Method of finding the Latitude of a Place , 
Comp, of alt. at 2d observ* 49° 9' 9" Comp, of alt. at 3d observ" 49 0 io' io r 
Declin. — - .. . ■ - ■ ■ ■ 5 26 25 Declin. " 
Lat. = 54 35 34 
Observations 1st and 3d. Observations 4th and 2d. 
Lat. 54 0 35' 57* Lat. 54 0 35' 34" 
5 z 5 47 
Lat. = 54 35 57. 
Log. of a — 9,8153538 - 
— - d = 8,9768457 
I zz 9,9112212 
a m * 
■ jj - zz 20,9272869 
jj - = 10,4636434 
Log. tang. = 10,4363220 
2 x log. tang. = 20,8726440 
Log. of r zz 8,9788063 
s — 10,1483229 
Computed log. of y 
True 
9-99977 32 
9,9984422 
Area gb zz 13310 
Computed log. of r zz 10,0000000 
True = 9,9986765 
Area gb = 13235 
i±±ii = , 3 , 72 
9,8152367 
- 8,9760047 
9,9111868 
20,9280452 
- 10,4640226 
. 10,4367520 
20,873504° 
8 >977957 8 
10,1482204 
9,9996822 
9,9983881 
12941 
10,0000000 
9,9987084 
12916 
12928 
Log. v 
3,1015 
9,8787 
mv ^ = 22,9803 
Area gc : 
9,9980 
9,7629 
3,2194 
r r gb + gb 
Log of - — ^ — =4,1229 
gc zz 3,2194 
Difference = ,9039 
Hence, correction from 
tab. 2d =8' 1" - 
Lat. corrected = 54 0 27' 56" 
Mean corrected lat. 
- 4AU5 
- 3> ZI 94 
,8921 
- / 4 8 ' 
54° z 7' 44" 
: 54 0 27' 50'' 
