DISRUPTIVE DISCHARGE OF ELECTRICITY. 653 
TABLE I1X.—continued. 
Electrodes, small discs. Pressure, 180 mm. 
Equation, V =6-0767 ,/ {s’° + 15-040s' . 




Mean Diff. 
Length of Observed at Calculated 
‘6 Spark in Deflection. Zero. Diff. a ee £ eee Diff of Difference. 
entimetres. N. ni, Potential. Potential Sen SuiRe Potential. vi— Vv. 
Ss. nm —n, as wn! Vv. r 
( 482 498°5 16°5 
59 P= 485 ” 13°5 . 5 . 
o Se ‘ re 14 1215 11:88 40°27 
ioe des bee ER) 
476 i 225 |) 
480 185 || 
25) 479 bs 19°5 19°5 16:93 16°94 — 0:01 
| 480 . 18-5 
480 i 185 | J 
475 s 235 2D} 
472 ‘ 265 | | 
“AS 472 a 26°5 Zou 21°79 20°91 +0°88 
: 473 es 25°5 
475 - 23°5 
472 x 26°5 
471 ni 25 
1:0 470 bs 28°5 r Dials 23°53 24°34 —0°81 
474 : 245 || 
ui. 470 if 285) 0 |) 
Gh. 462 i 365 |) 
466 ss ES) 
1-25 J 465 i 33-5 | 333 | 28-91 27:42 41:49 
| 466 i 32-5 | | 
L| 467 ‘ 315 |) 
Ge «462 . 36:5 1 
461 OLD 
15 463 Fo BI) 35:9 31:16 30:27 +0°89 
465 : 33°5 
462 .. 36°5 


VOL. XXVIII. PART II. 8G 

