PROPERTIES AND THE PLASTIC EXTENSION OF METALS. 
125 
area of the first loop is many times larger than the area of the first loop of the 
previous record, and this area increases rapidly in the succession of loops. 
Fig. 8 (08 carbon steel). 
Steel .—Carbon 0'8 per cent., fig. 9. This diagram is introduced because it is taken 
from a test piece cut from a bar delivered from the works as steel of the same kind 
and quality as that from which the previous diagram was taken. 
Fig. 9 (08 carbon steel). 
X 
VOL. CCXXI.—A. 
