1010 ME. E. JENKIN’S EXPEEIMENTAL EESEAECHES ON THE TEANSMISSIOX 
Table XIV. — Signals sent through 1812 knots, in 9 coils. July 30, 1859. 
Maximum deflection caused by permanent current from 72 p.p. ... 166"^. 
Beats of metronome 
per minute. 
Signals sent. 
Source of electricity 
in contact with line 
at near end. 
Duration of contact 
at near end. 
Limit of deflection 
at far end. 
First observation. 
Second observation. 
Mean limit of 
deflection caused by 
contact. 
Eeduced mean limit 
of deflection caused 
by contact. 
Diagrams showing changes of current caused at far end of line 
oy the signals. ) 
Vertical scale of an inch = 1 division (strength of current). ' 
Horizontal scale ~th of an inch = 1 second (time). 
i 
Sob & dashes, \ A- i i 
1 
! 
92 
Dots 
aud 
dashes. 
72 p.p. 
72®'.p. 
E. 
0-652 
0- 652 
1- 304 
0-652 
88 
83 
95 
88 
90 
83 
95 
90 
89 
83 
95 
89 
53-6 
50 
57-2 
53-6 
, i 
! 
1! 
A. 
72 p.p. 
E. 
72 p.p. 
E. 
0-652 
0- 652 
1- 304 
1-304 
66 
65 
85 
65 
— 
66 
65 
85 
65 
39-7 
39-1 
51-2 
39-1 
- 
0 5" io'" 
1 1 1 1 1 LJ J..lJ . 
_/\p7X' “■ 
0 s" so" j : 
1 1 1 1 1 1 1 1 1 1 ol . 
84 
Dots 
and 
dashes. 
72 p.p. 
E. 
72 p.p. 
E. 
0-714 
0- 714 
1- 429 
0-714 
91 
85 
100 
90 
— 
91 
85 
100 
90 
54-8 
51-2 
60-2 
54-2 
2m 
1 it! ' 
A. 
72 p.p. 
E. 
72 p.p. 
E. 
0-714 
0- 714 
1- 429 
1-429 
72 
70 
90 
70 
— 
72 
70 
90 
70 
43-3 
42 1 
54-2 
42-1 
0 5" la" 
I 1 I 1 1 I 1 1 1 I 
1 ■ 
0 5'^ ±a" . 
1 1 1 1 1 1 1 1 1 1 o' 
72 
i 
Dots 
and 
dashes. 
72 p.p. 
E. 
72 p.p. 
E. 
0-833 
0- 833 
1- 666 
0-833 
92 
80 
100 
90 
— 
92 
80 
100 
90 
55-4 
48-2 
60-2 
54-2 
1C yi 
/r\ 
A. 
72 p.p. 
E. 
72 p.p. 
E. 
0-833 
0- 833 
1- 666 
1-666 
75 
70 
95 
70 
75 
70 
100 
68 
75 
70 
97i 
69 
45-1 
42-1 
58-7 
41-5 
0 S'\ lo" 15" 
1 1 1 1 1 1 1 1 1 . 1 1 1 1 1 1' 
0 S" 10" ; 
1 1 1 1 1 1 J 1 1 J _ ^ A 
60 
Dots 
and 
dashes. 
72 p.p. 
E. 
72 p.p. 
E. 
1 
1 
2 
1 
95 
80 
105 
90 
93 
78 
105 
90 
94 
79 
105 
90 
56-6 
47-6 
63-2 
54-2 
1 
^ /\ /~\ SI 
A. 
72 p.p. 
E. 
72 p.p. 
E. 
1 
1 
2 
2 
70 
65 
100 
60 
= 
70 
65 
100 
60 
42-1 
39-1 
60-2 
36-1 
0 S"' io" IS" 
V i 
0 5" 101' IS" j 1 
50 
Dots 
and 
dashes. 
72 p.p. 
E. 
72 p.p. 
E. 
1-2 
1-2 
2-4 
1-2 
95 
75 
no 
85 
— 
95 
75 
no 
85 
57-2 
45-1 
66-2 
51-2 
iOO: • 
1 , 
i: 
/\ /A J 
A. 
72 p.p. 
E. 
72 p.p. 
E. 
1-2 
1-2 
2-4 
2-4 
80 
68 
115 
60 
72 
60 
110 
55 
76 
64 
1121 
57i 
45-8 
38-6 
67-7 
34 6 
— - 
0 6" 1 lo" iS" 
X j. 
0 S" 10" If’ 1 
40 
Dots 
and 
dashes. 
72 p.p. 
E. 
72 p.p. 
E. 
1-5 
1-5 
3 
1-5 
100 
75 
120 
85 
no 
80 
130 
90 
105 
77i- 
125 
m 
63-2 
46-7 
75-3 
52-7 
■ 1 
..A i 
A. 
72 p.p. 
72^i.p. 
E. 
1-5 
1-5 
3 
3 
80 
65 
115 
50 
75 
60 
115 
45 
77\ 
62i 
115 
m 
46-7 
37-6 
69-2 
28-6 
0 S" 10" IS" 
7^ ViT^ V |t 
0 S" ' 10" IS" [j 
