electric discharge with the chloride OF SILVER BATTERY. 119 
INDEX TO PART l. 
Accumulators for high potentials, description of various 
„ effect of, on length of spark 
„ use of, with “ vacuum tubes ” 
Amalgamation of ainc, reason for abandoning 
Arc. — Distance at which an arc forms, at various differences of potential 
Between two points . . 
,, a point and a disc . . 
„ ,, influence of form of point on 
,, ,, influence of metal used for point on 
,, „ variation in, according as the point 
and the potential high or low 
Length to which arc can be drawn out 
Appearance of, in different gases . . 
Stratification of 
See “ Blast,” “ Current.” 
Attraction of paper slip to disc of discharger 
„ ,, ,, Professor Stokes 
,, and repulsion of gas-jet 
Battery, number of cells in . . 
„ construction and working of 
,, cost of 
„ time occupied in charging 
,, loss in working up reduced silver 
Battery-cabinet for 1200 cells 
Battery-switch 
Blast from blow-pipe, effect of, on distance at which arc forms 
Bleekrode, Dr. L., experiments on electrolysis . . 
Bromide of silver cell, electro-motive force of 
„ „ large formation of oxyhalo'id compound 
Chloride of silver cell, Dr. O’Shaugnessy’s 
,, „ electro-motive force of 
,, ,, ,, ,, before and after ac 
,, ,, constancy of 
„ ,, internal resistance of 
Condenser. See Accumulator. 
Current when “ streamers ” and when arc formed, comparison of 
Current-breaker . . . . . . . . . 
Current-reverser 
Cylinders, length of spark with concentric 
Deflagration of wires 
Deposit on plate previous to the formation of arc 
s positive or 
idulation 
negative, 
PAGE. 
. . 98-99 
86 
99 
109 
85 ; 118 
80-85; 118 
76-79 
93-94 
76-77 
95 
96 
95 
90-92 
115 
93 
55; 116 
109-114 
110 
111 
118-114 
60 
61 
88 
97 
57 
114 
55 
56-57 
84 note 
111-112 
57 
87 
64 
62-63 
74-76 
100-101 
88 
