ON THE PERIODS AND NODES OF LOCHS EARN AND TREIG. 
Continuing the calculation in like manner, we get— 
ae | Iui(e, 2 | Diff. for :01 
4 | 
lll tex ‘18129 | -04077 
29 | ~-01822 | -04023 
30. | 02200 | 
Hence gto = “2945. 
a= ‘4110. 
3%) = 99°81 x 480,100 sq. ft. 
gto = 27°14 x 692°9 ft. 
Nel7. HASTERN TRINODE OF Harn. 
T=5°743', c=22°8123. 
The Coefficients of L’(c, z) are the same as for the Middle Trinode. 
Value of L/(22°8128 , -06). 
loo B, log 2” aa T, qT, 
n oS 0g z log T,, i Zs 
0 100000 
1 1°35817 2-77815 *13632 1°36874 
2D 2°07443 3°55630 1:63073 | 42730 
3 | 234582 | 4:33445 | 9-68097 | 04789 
4 2:17560 5'11261 3:28821 00194 
5 1°22668 789076 511744 00001(3) 
6 ‘52699 8°66891 719590 00000(016) 
7 11986 9:44706 9-56692 
Series error < ‘0000002 1:42924 1:41664 
L'(22°8123, -U6)= + 01260. 
We find the following values in like manner :— 
z Iai(es 2) Diff. | 
060 + 01260 01075 
061 + 00185 01062 
062 — 00877 
Therefore a@, = 06117. 
3, = 8777. 
323 = 127°7 x 480,100 sq. ft. 
gig = 43°1 x 692°9 ft. 
837 
