432 
MR. HODGKINSON’S EXPERIMENTAL RESEARCHES 
Table I. (Continued.') 
Length. 
Diameter. 
Mean 
Diameter. 
Deflection 
of middle 
of pillar. 
Corre- 
sponding 
weight. 
Breaking 
weight. 
Mean from 
breaking 
weights. 
Remarks. 
inches. 
60-5 
60-5 
60-5 
inch. 
1-94 
1-97 
1 - 96 . 
inch. 
1-94 
1*96 
inch. 
lbs. 
lhs. 
22811 
lhs. 
22811 
Weight of pillar 44 lbs. 
bent. 
•02 
•07 
•20 
•23 
•28 
•37 
•50 
•52 
•60 
•03 
•05 
•11 
•19 
•20 
•35 
•48 
3355 
7386 
12970 
19943 
21035 
22127 
23219 
24311 
24857 
12287 
14839 
17391 
19943 
21219 
22395 
22787 
25403 
23179 
24291 : 
Weight of pillar. 
46 lbs! 8 oz. } Mean 46 lbs- 12 °z- 
T : C : : 150 : 42, or 153 : 43. 
30-25 
30-25 
30-25 
• 50 ' 
•50 
•50 
•50 
bent. 
•03 
•15 
•02 
•09 
248 
360 
472 
304 
472 
526 
535 
556 
>539 
Broke 2| inches from middle. 
Broke near the middle. 
Broke f inch from middle. 
30-25 
•77 
•77 
•02 
•07 
•10 
1717 
2054 
2390 
2726 
2726 
For form of fracture, see f. Plate XV. 
30-25 
30-25 
30-25 
30-25 
30-25 
30-25 
30-25 
20 - l666 
20-1666 
•99 
•99 
•99 
•04 
•13 
•02 
•07 
2745 
4985 
3641 
4985 
6105 
6105 
6105 
T : C : : 76 : 23. 
f T : C : : 78 ': 21. 
I This bent apparently in different directions. 
1 For the forms of fracture, see c d e. Plate 
[ XV. 
1-29 
1-29 
1-29 
1-52 
1-53 
1-51 
1-52 
1-001 
1 - 02 / 
1-01 
•01 
•03 
•04 
•07 
•08 
•10 
•12 
•21 
12287 
13563 
14839 
16115 
12287 
13563 
14839 
16115 
17515 
16955 
>17235 
Neutral line well-defined. 
T : C : : 96 : 34 ; in another case 95 : 32. 
' T : C : : 105 : 24 ?, small flaw in tensile part. 
For the forms of fracture, see a b. Plate XV, 
•04 
•06 
•12 
22619 
25867 
30739 
•07 
22619 
32419 
34638 
30536 
32531 
T : C :: 99 : 51. 
T;C :: 101 : 52. 
T : C : : 110 : 43. 
15737 
15737 
15737 * 
f Weight 4 lbs. 3 oz. ; T : C : : 63 : 67. 
J Weight 4 lbs. 5 oz. ; T : C : : 65 : 37- 
|_For form of fracture, see h. Plate XV. 
