20 
MR. LUBBOCK’S RESEARCHES 
Development 
of 5 d K. 
{- 
.hlr 
8 1 
f . 2.16 
43 
r 3 ' } y 2 
e cos (2 t 
— x + 2 y) 
[63] 
{- 
2 . 9 
8 r ‘ 
' - s i 47 | y 2 ecos (21 + 
x-2y) + ^ ?y 
'y-e 
[69] 
[♦ 
2.3/ 
16 V 
/ + | - 
_ r ' 
43 5 
21 1 
~ S* 147 
-y 2 ecos (z — 2rj) 
J 
[71] 
2.21 r 
16 l 
r i + 
16 
43 r * 
, , 3 
+ S'* 147 
ly 2 e ( cos (z + 2^) 
[72] 
{+ 
2.9 , 
16 r ‘ 
, 26 , 
+ 69 rs " 
9 
| y 2 e t cos 
(21 — z — 2y)+ ~ 2 ^ r i 
[73] 
{ + 
2.9 , 
16 7-1 
- 26 (r> 
69 l 5 
+ *5 | 
+ -§-* 147 } 
,y 2 e / cos (2 1 + z — 
2 y) 
[ 70 ] 
[74] 
2 . 9 
+ -jg- r i y 2 e, cos (2 1 + z + 2 y) 
[75] 
[76] 
+ 5- c ' a {l r!, + T x ‘}} cos< 
[ 101 ] 
, a f , 2.45.3[ , , , 1 2.3 [3 .,1.1 
+ ^{ + -T^2-{ r ' + "‘)-l6-{T r '+T x 'J 
+ 2 ~t { 4 ^ + Y A3 } } ecos ^ _x ) 
[ 102 ] 
- 2 8 - { r *' + } | ec ° s ( <+ ^ 
a 2 . 15 
a, } 1G.2 
[103] 
af 2.25.3/ fl .1 . 2.3/3 , 1 1 
^{--8T2-{ r ‘ +X ‘} + -Fl2 r ‘ + -2 A ‘| 
