from the measurement of an arc of the meridian , &c. 507 
(9 0 53 45”> 2 5) as determined by seven corres- 
ponding stars, to the latitude of Punnae, is 18 0 of 23" ,64 
The mean of which, or correct latitude, is 18 03 23 ,58 
Hence from 18 0 3' 23", 58 
Subtract 9 4 43 >66 
Dif. or arc 8 58 39 ,92 whose measure is 543088,024 
To which add o 1 20 ,08 whose measure is 1345,184 
Gives the N°. n of) . . _ 
complete degrees 1 ~ ^ 0 0 whose measure (A) is 544433,21 
Now the measure of the first degree is - 60472,83 
And n = 9, therefore n m ^ is equal - 544 2 55>47 
(1) _ 
ii 7>74 
Which subtracted from A gives A — nmr 1 
And Sin. a /* 2 *— Sin. 2 / (l) =, 006014; therefore, 006014 XI17, 74 
= 1,0689284 =3 (A — n m^) . (Sin — Sin. */ x *) the 
numerator; and the denominator (Sin. e /^ — Sin. 0 /^) + 
+ (Sin. ®/ (3) - Sin. 2 / (I) ) + (Sin. 2 / (+) - Sin. 2 / (,) ) -f . . . 
(Sin. 2 / (9) — Sin. 2 / 1 11 ) is equal 0,263137. Hence we shall have 
( A — nm (*) )•( Sin. 4 /( 2 )-— Sin. t /( I ) 
(Sin. 4 Z( 2 ^— Sin.^(d)-f-(sin.^(3)— Sin. 4 /^ ) -f . . .(sinM^—SinM 1 )) * 
equal 
1,0689284 
0,263137 
4,06225 
= 4,06225 == d ; and- 
Sin. 4 /f 2 )~Sin. a /( 1 ) 
“ ' ,006014 
has been constructed. 
675,47 = Q, and from these the following table 
3U 
MDCCCXVIII. 
