438 
MR. HODGKINSON’S EXPERIMENTAL RESEARCHES 
Table IV. — Strength of Solid Uniform Cylindrical Pillars of Low Moor Iron, No. 3, 
60^ inches long, with discs upon their ends to prevent them turning. Plate XV. 
No. 2, fig. 3. 
Diameter 
of pillar. 
Mean 
dia- 
meter. 
Weight 
of pillar. 
Deflec- 
tion. 
Corre- 
sponding 
weight. 
Breaking 
weight. 
Mean 
freaking 
weight. 
Remarks. 
inch. 
inch. 
lbs. oz. 
inch. 
lbs. 
lbs. 
lbs. 
•51 1 
•51 / 
•51 
483] 
491 J 
OO 
GO 
8 9 
•16 
1089 
J After bearing the first weight it had taken a set of about 
*01. Broke 4§ inches from middle, at a slight flaw. 
•23 
1617 
•26 
1841 
•775 
•31 
2065 
> 
•35 
2289 
•44 
2513 
•61 
2737 
2926] 
2719 
•77 J 
7 10 
2513 J 
Broke If inch from middle. 
1-00 A 
12 12 
•06 
4123 
•15 
5467 
•34 
6811 
•48 
7147 
•99 > 
1-00 
12 9 
•04 
7315 
4095 
7483" 
Broke in middle. 
•06 
5439 
•10 
6111 
6830 
•21 
6783 
7H7 
Broke § inch from middle, and the disc at one end was split. 
1-00 
12 10 
6907 
1-00 J 
12 9 
5815 J 
1*281 
21 5 
•01 ? 
2381 
•05 
4973 
11169 
After bearing 4973 it was unloaded and returned to -00. 
•11 
V 
1*28 
•22 
•30 
14405 
15301 
•36 
15749 
•51 
16197 
1642P 
J Broke 2 inches from middle and near one end. T r C : : 
\ 101 : 28. 
1-28 
21 8 
•01 ? 
2749 
•02 
5437 
•18 
13797 
> 
16369 
After 5437 it returned to ‘00. 
•25 
14805 
•38 
15813 
•62 
16317 
16317 
J Broke in about a minute, If inch from middle, and near 
\ one end. A wedge showed T : C : : 91 : 36. 
1-53 I 
1-53 J 
1-53 
29 4 
32007- 
29571 
30789 
Broke in middle T : C : : 116 : 37. 
J This was a little bent, and probably weakened by making 
\ straight. 
