206 MR W. GORDON AND MR G. H. GULLIVER ON 
breadth of the gap at fracture, expressed as a percentage of 8 inches. The numerical 
data are given in Table V. 
1e%) 
NS 
30 
TOTAL EXTENSION PER CENT. 
N 
le} 
NO 
oD 
24 
=) 
10 
WIDTH 
THICKNESS 
Fie, 8.—Similar to fig. 7, but with a gauge-length of 8 inches. The vertical distance between the two curves is the breadth 
of the gap at fracture, expressed as a percentage of 8 inches, 
TABLE V. 
Extension or Bars or Vartous Wiptus, Measurep upon Lenorus or 8 Incuss, and 11:3 /ARzEA, 
Extension per cent. 
inal Wi Width f 
N aa WEeeaeas: Gauge-length = 8 Inches. Gauge-length = 11:3 ./Area. 
== = = i, f 
Gap included, Gap deducted. | Gap included. | Gap deducted. i 
1 1-76 22-58 22-29 28-18 27-57 4 
l 3°31 26°15 25°69 28°79 28:13 | 
1} 5-64 28-98 28-15 30-21 29:24, 
2 7-57 30-44 29°48 30:44 29:48 
21 9°57 30°61 29°61 29°39 28°51 Sm 
3 11-14 31-10 29°35 28°75 27-32) 
3} 13°32 31-90 30°71 28-17 27-28 a 
4 15°39 33-93 39°47 29°70 28°68) 0am | 
