116 
ELECTRIC DISCHARGE WITH THE CHLORIDE OF SILVER BATTERY. 
PAGE. 
Resistance, blacklead-pencil-line .. . . . . .. . . . . .. .. .. 110 
Stokes, Professor .. .. .. .. .. .. .. .. .. .. .. 79 ; 109 
Stratification, nature of, De la Riye . . .. .. .. .. . . . . .. .. 113—114 
Tube of large dimensions, Plate 9, figs. 5, 6, 7 ; fig. 87 ; A, B, C .. .. . . . . . . 104 ; 106 
„ peculiar discharge in a, Plate 9, fig. 3 .. .. . . ,. .. .. . . .. 75 
Tube-potential. See Potential. 
„ calculation from deflections of a galvanometer .. .. .. .. .. 65 
,, decreases with decrease of pressure at first, then increases . . . . . . 69 
,, for hydrogen, least at a pressure of 0'64 m.m., 845 M .. .. .. .. 69 
„ measurement of, by means of the electrometer .. .. .. .. .. Ill 
„ „ ,, an enormous pencil-line resistance .. .. .. 110 
Plates 8 , 9, 10, references to text. 
Plate 8, figs. 1-10 .. .. .. .. .. .. .. .. .. .. .. 91 
,, tigs. 11-19 .. .. .. .. .. .. .. .. .. .. . . 88 
,, fig. 20 .. .. .. .. .. .. .. .. .. .. .. .. 91 
„ figs. 21-29 98 
„ fig. 30. 103 
„ fig. 31. 91 
„ figs. 32-33 90 
„ figs. 34-35 99 
Plate 9, figs. 1, 2, 3 .. .. .. .. .. .. .. .. .. .. .. 73, 75 
„ fig. 4 .. .. .. .. . . .. .. .. .. .. .. .. 108 
,, figs. 5-7 .. .. .. .. .. .. .. .. .. .. .. 104-106 
„ figs. 8-10 .. .. . 87; 90-91 
Plate 10, figs. 1-18 94-96 
„ fig. 19. 107 
„ figs. 20-23 .. .. .. .. .. .. .. .. .. .. .. 89 
,, fig. 24 .. .. .. . . .. . . .. .. .. .. .. .. 101 
„ fig. 25. 100 
,, fig. 26 .. .. .. .. .. .. .. -. .. .. .. .. 99 
,, figs. 27-28 .. .. .. .. .. . . .. .. .. .. .. 108 
