546 REPORT—1896. 
IV. Comparison of the Values of the Coefficient of Elasticity 
obtained by different Observers. 
The different values of the coefficient of elasticity calculated from the 
observations are affected by errors of measurement of the bars, errors of 
calibration of the testing machine and extensometer, errors of observa- 
tion, and errors inherent in the construction of the extensometer, 
Taste LV.—Values of Coefficient of Elasticity obtained by different 
Observers. (Tons per square inch.) 
. 
Mean of all 
Results by | Mean results| Mean ofall | results on 
Bar ‘Observer each by each results on | bars of same 
observer observer one bar material and 
size 
13290 
13290 
13116 |) 
13160 | 
13198 
13231 | 
13260 | 
13260 
13200 
13320 
13260 
13260 | 
13430 
13430 
| 
| 13465 
13500 | 
) 
} 
| 
| 
E J.A. Ewing , 
Dea eee ee ees sce ees ees i ct ee eet CU = bc nat Sg 
H. 8S. Hele Shaw 
W.C. Unwin , Fy 
D.S. Capper . e 13260 
13249 
A. B. W. Kennedy . 
13500 
13050 
13150 
13070 
13150 
13250 
13250 
13380 
13350 
13310 
13072 
13495 
13385 
13100 
13040 
13100 
13160 
13200 
13200 
13260 
13420 
13210 
13160 
13244 
13244 
13120 
13120 
13210 
) 
) 
13210 | 
F |. Hudson Beare . 13273 
J.Goodman . 5 
J. A. Ewing . ° 
oe 
> 
H. 8. Hele Shaw ‘ 
K |W.C.Unwin. . 13274 
D.S. Capper . e 
A. B. W. Kennedy . 13245 
T. Hudson Beare , 
13215 
L J.Goodman , 4 
D.8. Capper . . - 13153 
13130 
13130 
