846 PROFESSOR CHRYSTAL AND MR E. MACLAGAN-WEDDERBURN 
Norta Binope or Treie (North of Deepest Normal Point). 
\ 29. 5099" eet yo: 
Coefficients of L’(12°2275, z). 
é B 
jee Cn ay | af Pes; g loo B. loot = 
n(n + 1) al ae! Hone Pes, 
0 log c= 108734 
Ts sapieRS ‘70874 ~~ | 1-°08734 | 108734 
2| 1-0380 01620 =| -:1°79608 | 1-49505 
3 0190 || 227875 181228 | 1-33516 
4 3886 | 1:58950 09103 | _-48897 
5| 5924 | 177262 168053 | 2-98156 
6 ‘7089 | 185058 | 145315 | 2-675v0 | 
Value of L/(12°2275, 1150). 
| | 
B | T a 
loo = log ao] eZ a 
n ) a 0g Zz log T, | fl ms 
0 ee | 1-00000 
1 | 1-08734 | 1-06070 | 14804 1-40618 
2 | 1:49505 | 212140 | 161645 - -41348 
3 | 133516 | 3-18209 | 251725 03290 
4| 48897 | 424279 | 473176 | -00054_ | 
5 | 2-98156 | 5:30349 | 6:28505 = -00000(19) 
6 | 267500 6-36419 | 7:03919 — -00000(01) 
a Saree | = 
Series error <-000001 | 141402 1:43908 
Hence L'(12°2275, -1150) = — -02506. 
Calculating in like manner, we get the following table :— 
"1100 | +:00492  -01525 
1125 | —-01033 | :01473 
"1150 | —:02506 
Hence f= LLOS: 
9W,= “1785. 
oly = 48°40 x 774,400 sq. ft. 
ot) = 56'7 x 346°5 ft. 
