844 
Value of L/(3°8073, °305). 
PROFESSOR CHRYSTAL AND MR E. MACLAGAN-WEDDERBURN 
l By 
n 08 log 2” 
nr 
0 
] “58062 1°48429 
2 23561 2:96859 
3| 1:62234 245289 
4 | 133164 3°93719 
5 114302 3°42149 
6 | 1:00490 4:90579 
7 | 2°89668 4:39009 
8 | 2-80811 587439 
9 | 3°73387 535869 
Series error < ‘000002 
ap Ty 
loe T,, ia be 
1:00000 
06491 AGP 
1:20420 16003 
2:07523 01189 
3°26883 00186 
456451 ‘00037 
5°91069 ‘00008 
528677 00001(9) 
668250 ‘00000(48) 
6:09206 -00000(12) 
1°17425 1:16121 
Hence L'(3°8073, °305) = +°01304. 
Calculating in like manner for z= ‘310, and z=°315, we get the following values :— 
z (espe) Diff. 
305 + 01304 ‘01301 
310 + 00003 01287 
Ge lt5) — 01284 | 
Interpolating, we find ,z,="310; and therefore ,w,=°380. It follows that 
1”, =°380 x 62°16 x 774,400 sq. ft. 
= 23°61 x 774,400 sq. ft. ; 
and =a, = 35°6 x 346°5 ft. 
§ 28. Sours BinopE or Tree (North of Deepest Normal Point). 
‘at => 
Coefficients of 8’(12°2275, w). 
DH099) se — 12227, 
9 La sete ec ae log ( ah = ) loo 
” |'~@n=a)@na1) | °8\'~@acayenci)| 8 Am °8 On 
2 log | = 108734 108734 | -78631 
4 1:0380 01620 110354 | 50148 
