690 REPORT—1863. 
Taste LV.—India-rubber-covered Wire. 
Pressure me 
: in atmo- | Resistance. 
Time. | spheres. | BR. _T28aP. Doragee 
P. 
nym millions. 
10 0 0 128 _0-00083 Zinc-current had been half-an-hour 
10 10 75 120 ~ 000042 to cable to complete electrifica- 
10 17 150 116 _ 000031 tion, and kept on during the ob- 
10 28 225 113 _ 000125 servations uninterrupted. 
10 33 300 101 This reading was scarcely made, 
when the needle of the galvano- 
meter showed a considerable fault 
to have occurred. The fault was 
afterwards found to be in the 
stuffing-box. 
See ES Se 
Taste V.—India-rubber-covered Wire. 
Pressure 1 minute. 4 minutes. 9 minutes. 14 minutes. 19 minutes. 
inatno:)| ———— SO ee | ae 
me |e | ge |B | ore | ® | oan | ® | roar 
—0:0016 77 —0:0015 81 —0:0020| “g5 0:0028 
pe y 00008] 77 |-oo012) (7 |-o-0021} Gf |-0-0017 
Oriratiy ot tee foe emo T sm oS Mas 
ae ha: ao a 87 ap as 
Remarks.—* Cable to earth two hours between each series. + Immediately after 
pressure. } Three hours after pressure. 
Taste VI.— Wire covered with India-rubber and Gutta percha (No. 13). 
Pressure | mm AR 
: in atmo- sistance. | _Stv 
came: spheres. R. 59AP. Sema 
P. 
h m millions. aif 
11 0 0 59 0-0011 Zinc-current had been kept on the 
ll 9 75 64 0-0011 cable during an hour before the first 
11 17 150 69 0-0005 reading was made, and not inter- 
11 29 225 71 0-0011 rupted during the series. 
11 36 300 76 
11 39 0 58 
