ON 
Value of 8’(12°2275, -0142). 
THE PERIODS AND NODES OF LOCHS EARN AND TREITG. 
| | 
| | ee as At 
| 2n | log los | log Ty, aie Dy 
| | 
| o| | | 1-00000 
2 T8631 | 130458 _ 3-09089 00123 
4 -50148 | 860915 | 711053 -00000(01) 
| 
Series error<-000001 100000 | 00123 
S'(12:2275, 0142) = + 99877. 
Coefticients of C’(12'2275, w). 
Vo eel (ee eee 
i @a—tyan| 8’ ~@aa dan) | es Ann | les 
1 log c= 1:08734 108734 | 1:08734 
3 51138 70874 179608  1-31896 
5 0190 2:27875 07483 | 1:37586 
Value of C’(12°2275, 0142). 
IN. : | | n tS T 
2n+1 log 751 lose = logit ss, a of a 
1 | 1:08734 3-15229 123963 17363 
3 | 131896 | 645686 577582 00006 
5 | 1:37586 | 10-75144 10:12730 | 
Series error< ‘000001 00006 17363 | 
In this way we get 
('(12-2275, 0142) = —-17357.. 
(0142) = — -17464 x -99877 + 17357 = — -00086. 
» | wm | Be 
| 
01420 | —-00086 00012 
01425 | —-00U25 | 00012 
01429 | +-00024 | 
Hence 
9, = "01427. 
o¥, = 89 x 774,400 sq. ft. 
ot, = 18°7 x 346°5 ft. 
845 
