95 
ELECTRIC DISCHARGE WITH THE CHLORIDE OF SILVER BATTERY. 
depression 2 m.m., total pressure 120’4 m.m., ratio of increased pressure 1*016 ; 
fig. 7, similar to the preceding. 
Distance X 8 = 1*28 inch, pressure 118*4 m.m., 155,789 M, current 0*02170 W, 
depression 3 m.m., total pressure 121 *4 m.m., ratio of increased pressure 1*025 ; fig. 8, 
the luminosity on the negative increasing. 
Distance X 9 = 1*44 inch, pressure 118*4 m.m., 155,789 M, current 0*02170 W, 
depression 3 m.m., total pressure 121*4 m.m., ratio of increased pressure 1*025, fig. 9. 
The central bright portion was divided into two luminosities, that nearest the negative 
being the less bright. 
Distance X 10 = 1*60 inch, pressure 118*4 m.m., 155,789 M, current 0*02056 W, 
depression 3 m.m., total pressure 121*4 m.m., ratio of increased pressure 1*025, fig. 10. 
The central portion was divided into two luminosities. 
Distance X 11 = 1*76 inch, pressure 111*3 m.m., 146,448 M (the current would 
not pass at 118*4 m.m.), current 0*01948 W, depression 4 m.m., total pressure 
115*3 m.m., ratio of increased pressure 1*036, fig. 11. The central portion was more 
decidedly divided into two portions, and assuming an upper-lip like form. 
Distance X 20 = 3*2 inches, pressure 74*6 m.m. 98,158 M, current 0*01840 W., 
depression 8 m.m, total pressure 82*6 m.m., ratio of increased pressure 1*107, fig. 12. 
The discharge had formed near the peripheries of the terminals. The luminosity on 
the negative had increased. 
Distance X 40 = 6*4 inches, pressure 46*6 m.m., 63,947 M, current 0*01390 W, 
depression 9 m.m., total pressure 55*6 m.m., ratio of increased pressure 1*193, fig. 13. 
The central bright part reached at first nearly to the negative, then after a short 
interval retreated first to about 2 inches and then to 3 inches from it. 
Distance 6*4 inches, pressure 26*9 m.m., 35,395 M, current 0*01840 W, depression 
10 m.m., total pressure 36*9 m.m., ratio of increased pressure 1*372, fig. 14. The 
central portion reached to the negative and did not divide into entities. 
Distance 6*4 inches, pressure 13*7 m.m., 18,026 M, current 0*02056 W, depression 
3 m.m., total pressure 16*7 m.m., ratio of increased pressure 1*219, fig. 15. The 
central portion reached at first to within 2 inches, and then retreated to 3 inches from 
the negative. 
Distance 6*4 inches, pressure 7*1 m.m., 9342 M, current 0*02131 W. The jar- 
potential was found to be 2069 cells. The discharge had increased in width 1^ inches 
in diameter, and was 3 inches long. A purple glow on the negative terminal, fig. 17. 
Distance 6*4 inches, pressure 5*5 m.m., 7237 M, current not taken, depression not 
appreciable. There was a barely visible discharge between the terminals, the positive 
was illuminated all over the surface opposed to the negative, which terminal was 
completely covered on the top and under surface with a purple glow about a quarter 
of an inch deep, fig. 16. 
Distance 6*4 inches, pressure 4*1 m.m., 5395 M, current 0*02456 W, the jar- 
potential was 1448 cells, its resistance 70,000 ohms. 2400 rod ceils passed, giving 
