56 
Proceedings of the Royal Society of Edinburgh. [Sess, 
Table III. 
Distance between 
Adjacent Burners 
(x). 
Illuminating 
Power. 
Observed. 
Calculated (Pj). 
Calculated (P 2 ). 
/ P, = 1 + •38e -4 ' 9( * _11)2 * 
Series A, 3 burners. J 
f , 
e 13x ( _ 
1 Po = l + '38e ' < 
1 + 
( - 
l 8 x 10 10 ) 
*75 cm. 
1-21 
1-21 
1-21 
1-00 „ 
1-36 
1*36 
1-36 
1-25 „ 
1-35 
1*35 
1*35 
1*58 „ 
1T3 
1T3 
1T3 
2-10 „ 
1-02 
1-00 
1-03 
3*00 „ 
1*03 
1-00 
1*01 
5-00 „ 
1-00 
POO 
1*00 
7-92 „ 
1*00 
1-00 
1-00 
( P 1 = l + -36^' 7( *- 1 * l)2 . 
Series B, 3 burners. J „ 
_ - -6-7te-1-l)2 1 
; , 
e 9x ) 
1 4 - 
\ . 
I 2-5 x 10 6 J 
•80 cm. 
1-20 
1*20 
1-20 
1'00 „ 
1-34 
1-34 
1-34 
1-25 „ 
1*33 
1-32 
1-33 
2-00 
1-04 
1-00 
1*04 
3*10 „ 
1*01 
1-00 
1-00 
7*77 „ 
1-00 
1-00 
POO 
Table IV. 
t 
Distance between 
Adjacent Burners 
(*)■ 
Illuminating Power. 
Observed. 
Calculated (P^. 
Calculated (P 2 ). 
( P. = 1 + *30e -5 8(fl5-1 06)2 . 
Series A, 4 burners. < 
— R-ftlr .— 1 1 
e ir3x ) 
P 0 = 1 + ’30e ■ < 1 + 
„ > . 
9 x 10 13 j 
•75 cm. 
1T7 
1-17 
1*17 
1-02 „ 
1*30 
1-30 
1*30 
1-50 „ 
1-095 
1096 
1096 
2-21 „ 
106 
1-00 
1-06 
3*10 „ 
1*02 
1*00 
1-02 
7-05 „ 
1*00 
1-00 
1*00 
