ON THE SPECIFIC RESISTANCE OF METALLIC WIRES. SWAT 
TABLE I.—continued. 
Weight on | p ‘ Cea | ee 
ercentage nerease 0 4 
Date. the yen Elongation. Specific oy Huperinent 
TE v8 Resistance. 
22d Tune, 25: 6-35 4-50 No. 5. 
Bs 27° 8°33 5:44 Bes 
* 28: 10°76 7°32 
BS : 30° 14:39 9°74 
by oF 14:24 9°34 
‘ | 85: 14:38 9°70 
23d June, d 25° 14:38 9°69 ay 
3 30° 15°92 10°73 8°884 
TABLE II.—Specimen of English Copper. 
3 Percentage 
Weight on Percentage | Increase of : Number of 
Date. ie ison Elongation. poe Bessie _ Experiment. 
17th June, 19-00 0-00 0:00 8°895 No. 1. 
2 93: 1:23 1:04 ss ee 
5 103: 2°64 1:94 
A 112: 4:79 2°96 
- 122: 6:01 4:26 
‘ 127° 7-82 5-42 
a 19: 7°70 4-40 
.s 102: 7°82 bd2 
: 137° 9°53 6:48 
e 141° 11:06 7:42 
18th June, i144 11:06 Wao 
Me ISI 12:60 7:90 
yi 27° 15°27 822 54 
‘ 130° 15°44 9:38 8-873 
TABLE III.—Specimen of English Iron. 
. Percentage 
Weight on 5 
© Percentage | Increase of . Number of 
Date. me oe BlleHeation, Specific Densiny- Eeeaament 
Resistance. 
12th May 16:00 0:00 0:00 No. 1. 
=A 20:00 0:39 0:26 sole 
s D2) 1:10 0°78 
i 24:50 1:95 1:46 
. 26°75 3°32 2°36 
# 26°75 3°66 2°62 
ry 27°75 4-24 3°04 
‘ 29°95 ole 5:18 
VOL, XXX, PART I, 
