204 INQUIRY INTO THE STRENGTH AND 
No. XI. 
ENGLISH IRON. 
Oldberry, No. 2, Pig Iron, Cold Blast. 
xperiment 2nd 
Depth of bar....1.038]/Depth of Bar.. .. 
Breadth do.. ....1.009}/Breadth do....... 1-027]|Beadth do,....... 1.017 
Leperiment Ist. 
oo». 1.063 
periment 4th, 
aperiment 3r 
of Bar,...1:049 
d. 
1.071||Depth 
Distance between Distance between Distance between 
supports .... 4/t. 6in ||supports..-.... 2ft.3in.|| supports ....2ft. 3in. 
Weight of bar Sft. lon,g 
5 1531bs 
2138 32 | 4 ei 2/4 eae 3 
a | selaei a | 32/2 2 | ge |22 le |g | 38 
a |. $2 jee S| ea Se | 2 es | 22 | 2 [ee ee 
2 aA | & spe Ba | 2.5 | a | oS iP > |e tae 
Bp) a [SR e |* |F2y 2 ia [Pe ie js | 72 
30} .063) + 30} .065} — || 112] .029) — || 112) .029) — 
56] .125} .005]} 56} .124) + || 224) 057) — |} 224) .060} + 
257] 014. 336| .090| + |} 336.095] + 
032 448} 123) .005|} 448) 133} .005 
055 560] .161| .007|) 560} .174) .009 
: 083 : 672] .205| .014| 672] .219} .014 
336] .934) .119]} 336/1.002] .125]| 784) .250) .020]| 784) .267| .022 
392|1.140) .167]| 392]1.230) .184]| 896) .300} :032/| 896] 326; .036 
448)}1.373} 240] 448)1. 1495} .267//1008) .864) .050|) 008} 395) .056 
344 
504)1.661) . 4:76)1.644 1064) .400 
504\broke 1092\broke 
Broke } of an inch|| Ultimate deflection |},-. Ultimate deflection The weight (1008 
from the centre, when||:--1,788. —.416. when replaced brok 
the same weight was|| Broke 1% iuch from|| Broke Z of an inchllit § of an inch from the 
placed on again, after||the centre. from the centre, centre, 
the deflection and elas- 
ticity had been taken. 
