116 
BULLETIN OF THE BUREAU OF FISHERIES 
The calculated lengths (broken line) in Figure 33 include a large part of the fish 
given in Table 44, while the lengths at time of capture include all those given in Table 
45. The calculated lengths suggest that during their earlier growth the fish had 
been slightly smaller at each year of age than the fish of those same ages proved to be 
when measured. But the difference is so small that the curves confirm rather than 
contradict each other with respect to the approximate sizes attained at particular 
ages. 
AGE IN YEARS 
Figure 33.— Rate of growth of cod caught to the southward of Cape Cod, as determined from their scales 
It is interesting to see whether the dominant lengths of the cod living on Nan- 
tucket Shoals during this experiment were in agreement with the growth curve. 
An attempt to do this is made in Table 46. In this case the age was first estimated 
according to the lengths of the fish and the season when they were caught, without 
regard to their scales. 
