104 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I40 



Table is.—TTC 5-9 

 69 cm. 34 cm. 



1936 



1937 I see 3 see 



I msec 



1938 I see I see 



I sL 



1939 I see I see 



1940 I see 



I s cone. L. 2 sL 



psg psg-slight hint of 



immature cells. 

 Branch cut off November 9, 1940. 



Among the six branches, TTC 5-4 to 5-9 (tables 10 to 15), varia- 

 tions are numerous both among different years of the same branch and 

 among different branches for the same year. 



Table 16.— TTC 5-10 Table 17.— TTC 5-12 



53 cm. 36 cm. 56 cm. 37 cm. 



1936 I see 1937 (2d) I see 



1937 I see 1938 2 see i see 



I sL 



1939 2 see 2 see 



1938 I see I see-more i sL 



1940 I see I see 



I sL I sL 



1941 inc ine 



1939 I see I see Branch cut off May 24, 1941. 



1940 



I psL 3 sL 



I dl 



The upper portion of the trunk of TTC 12 contained five sharply 

 bordered growth layers in 1935. 



In tree TTC 33 a majority of the intra-annuals become sharper 

 margined inward on the branches. 



The display of growth layers in 1941 of TTC 34-2 (table 22) was 

 very probably formed by May 18, 1941, because on that date the 

 branch was killed by artificial freezing. 



