ae AN ACCOUNT OF THE 
to the latitude, or it is additive to dG the difference of latitude, so that 
utting. @ == the factor a found in Table 8; and b= the factor 
2 e iD 2 : 
z - found in Table 9, and 2” = the last correction. 
2 Re! 2 : 
PD oe fet db te 
d'Lis evidently to be subtracted from the given latitude L. 
~ EXAMPLE. 
. Tur distance of a snowy peak from the meridian of Belviile is 762,810 
feet. The latitude of the intersection of the perpendicular with the 
meridian is 30 23 36-5. - Required the latitude of the peak ?. 
Mere + = 762,810, and L = 30 93 39-5. 
Ist term. Log. of 762,810 = 5-882,491 
Log. factor for tang. — 0-000,191 
sa 1 0'382,612 
Squared, 1-765,224 
A (table number), 0°139,81 
80:358 — 1-905,93 
2dterm. Log. of A = 1-905 
b. (table 6-654 
036) $556 
Correction ¢ == 390. 
