ON THE PERIODS AND NODES OF LOCHS EARN AND TREIG. 849 
"2745, 
aes AOE 
U2 = 28°03 x 774,400 sq. ft. 
glo = 392 x 346°5 ft. 
Hence a%q = 
NortH Trrnope or Treie (North of Deepest Normal Point). 
oo ae eel, 
The coetticients of L’(24°711, z) are the same as for the Middle Trinode. 
§ 32. 
Value of L/(24°711, °0560). 
B, nm Db 1. 
n log = log z log T, i ms 
0) | 1:00000 
1 | 1:39289 | 2°74819 | -14108 1:38384 
2' 214707 | 3:49638 | 1°64345 ‘44000 
3 | 2°46493 | 4:24457 | 2°70950 "05123 
4 | 2:36497 | 6:99276 | 3°35773 00228 
5 | 164005 | 7°74095 | 5°38100 00002(40) 
6 | ‘80712 | 848914 | 7:29626 | 00000(02) 
Series error < ‘000001 144229 | 1°43509 
| 
Hence L'(24'711, 0560) = + :00719. 
In this manner we get the following table :— 
Bey) Dit 
al 
0560 | +:00719 | -00575 
0565 +:00144 | -00571 
0570 | —-00427 
Therefore gg= ‘0566. 
g,= 8868, 
33 = 99°12 x 774,400 sq. ft. 
3, = 65°2 x 346°5 ft. 
AGREEMENT BETWEEN THEORY AND OBSERVATION. 
§ 33. Sufficient observations are not yet available to enable us to test the above 
theoretical results with the degree of accuracy which we believe to be attainable. We 
may, however, conclude this memoir by stating what is already known to us—with the 
reservation that the results alluded to are merely preliminary, and subject to future 
correction and refinement. 
