Fig. 14. 
10 Z| 
eel 
April May June duly 
August September Or tober November December January February March 
Spring Salmon. 
A eurve to show percentage for each half month of the total growth forthe year. A curve to show at 
the end of each half month, the percentage of the whole growth of the year attained. A curve 
(interrupted) showing the annual variation of the temperature of the surface water. 
38a—34 
