OF ELEOTEIC SIONALS THEOFGH STJEMAEINE CABLES. 
1013 
When 
( 10 -) 
The equations (8.) and (10.), applied to the case of the Red Sea cable, give the 
results in the text, 
I =2192, . . . m=250xl0® . . . ^=228x10*% 
a® =£07258 _ 2-0664 . . . £-®=0-48394, 
Qo=lT694^=the entering current, 
Q,=0-784Qo=0-9168^°- 
Similarly, when ^=289xl0*^ 
Q,= 0-824Qo=0-938^- 
If the cable were perfectly insulated, by Ohm’s law. 
Section II. — Table XVI. 
1. 
2. 
3. 
4. 
5. 
6. 
Period of dot in 
seconds in function 
of a. 
Factor used in the 
formula given in the 
third column. 
Reciprocal of amplitude 
of variation in the 
received current produced 
by harmonic variation 
of potential at the 
operating end. 
Reciprocal of 
amplitude of 
variation in the 
received current 
produced by the 
dot signal. 
Amplitude 
produced by dot 
signals. 
Number of dots 
per minute. 
1 
1 6 in function of «. 
* V 
{2V2.flog,(ye‘} 
Third column 
Reciprocal of 
' CkP , 
«= -T-X l0‘ 
1 
1 
e=10A)_ 
multiplied into 
4' 
fourth column 
multiplied 
by 100. 
0 ■ 
0-25 X 
a 
100-7926 
182,840,000 
143,600,000 
0000,000,696 
240 
xi 
0-5 
y> 
71-2711 
288,070 
226,250 
0-000,442 
200 
99 
0-7.5 
>9 
58-1926 
17,402 
13,668 
0-007,315 
80 
99 
1-0 
>> 
50-3963 
3,.337-9 
2,631-5 
0-038,00 
60 
99 
1-1 
99 
48-0510 
2,040-0 
1,602-2 
0-062,42 
54-5 
99 
1-2 
99 
46-0053 
1,330-3 
1,044-8 
0-095,7 
50-0 
9 } 
l-,3 
99 
44-2005 
913-82 
717-71 
0-139,3 
46-2 
99 
1-4 
99 
42-5926 
654-97 
514-41 
0-194,5 
42-9 
99 
1-5 
99 
41-1496 
486-24 
381-89 
0-261,8 
40-0 
99 
1-6 
99 
39-8418 
371-60 
291-86 
0-342,6 
37-5 
99 
• 1-7 
99 
38-6522 
291-26 
228-76 
0-437,1 
35-3 
99 
1-8 
99 
37-5632 
233-24 
182-40 
0-548,2 
33-3 
99 
1-9 
99 
36-5617 
190-28 
149-44 
0-669,3 
31-6 
99 
2-0 
99 
.35-6356 
157-73 
123-88 
0-807,1 
30-0 
99 
2-1 
99 
34-7777 
132-65 
104-17 
0-959,7 
28-6 
99 
2-2 
99 
3.3-9782 
112-90 
88-67 
1-127,8 
27-3 
99 
1 2-.3 
99 
33-2299 
97-21 
76-35 
1-309,8 
26-1 
99 
2-4 
99 
32-5305 
84-52 
66-38 
1-506,5 
25-0 
99 
! 2-5 
99 
31-8742 
74-17 
58-25 
1-716,7 
24-0 
99 
j 2-6 
99 
31-2535 
65-57 
51-50 
1-941,7 
23-1 
99 
2-7 
99 
30-6696 
58-41 
45-88 
2-179,6 
22-2 
99 
1 2-8 
99 
30-1180 
52-39 
41-15 
2-430,1 
21-4 
99 
6 Y 2 
