670 ALEXANDER MACFARLANE ON THE 
TaBLE XXVII.—Long Distance Curve, 17th May 1877. Dielectric, Air. 
f Electrodes, small balls. Pressure, 30 mm. 
Equation, V =13'168s? —-40519s:. 

Length of “i Observed Diff.| Mean Diff. Calculated Diff. . 
Spar DES ae es A: of Potential. | of Potential. | of Potential. Difference. 
8. kip ee m—n. Vi. V. NEN. 

470 487 al 
AVA 55 16x 
471 Bs 16x 
16 12°8 +3°4 
a 
_— 
468 19 
469 % 18. 
470 ‘ 17 
18 175 +0°5 
467 : 20 
467 é 20 
469 ‘ 18 
2:5 19:3 19:2 +01 
465 ? 22 
465 i 22 
464:5 i 22:5 x 
22°5 24:9 —2-4 
Or 
461 - 26 x 
458 i, 29 
10 458 29 28:7 28'8 =01 
459 a 28 
458 5 29 
459 - 28 
459 55 28 
1255 28:3 28°6 — 03 
457 5 30 
460 » 27 
457 & 30 
29 27:5 +15 
— 
454 5 33 
454 és 33 
453 % 34 
: 
175 33:3 254 +79 
Sal 
Or 
ee ee ae ee ea 


— 

