Bull., U. S. B. F., 1928. (Doc. 1047.) 



EXPERIMEXT 6 



Fig. 38.— Harked at Herman Creek hatchery during the spring of 1920 when approximately 18 

 months old. Recovered at Clatskanie, Oreg., May 7, 1924, in its sixth year. Length", 38 

 inches; weight, 22 pounds. X 13 



Fig. 39.— Nuclear region of scale shown in Figure 38. X 25 



