NO. I GROWTH LAYERS IN TREE BRANCHES — CLOCK ET AL. 



103 



Table 9. — TTC 2-3 



Table 10. — TTC 5-4 



67 cm. 



1937 3 see 



I sL 

 I d iL 



1938 

 1939 



I see 



1 sL 



2 see 

 2 sL 



40 cm. 

 2 see 



I see 

 I sL 



3 see 

 I sL 



inc L's 



1940 inc L's 



Braneh cut off March 25, 1940. 



1934 

 1935 

 1936 



1937 

 1938 



1939 

 1940 



8y cm. 



1 see 



2 see 



I see 

 I sL 



1 see 



2 sL 



I see 

 I sL 



I see 

 I dL 



I see 



47 cm. 

 I msce 

 I msce 

 I msce 



I see 



I dL 



I see 



1 sL 



2 s arcs 



I see 



I sL 



I ce 



Branch cut off July 17, 1940. 



In TTC 5-4 (table 10), two points should be noted: First, com- 

 plexity decreases outward in some years and inward in other years ; 

 and second, the annual contacts for three years in sections at 47 cm. 

 are partially diffuse. 



Table 11.— TTC 5-5 

 56 cm. 



1939 



I see 

 I sL 



16 cm. 

 1 see 



1940 



Braneh cut off August i, 1940 



1 see 



2 sL 



I see 

 I dL 



1938 



1939 



Table 12.— TTC 5-6 



8g cm. 

 I see 



I psce 



I sL 



I see 

 I s arc 



45 cm. 

 I see 



I dL 



1 see 



2 psce 



In 1938 of TTC 5-6 (table 12), the i see becomes more diffuse out- 

 ward in the branch; the lens is concurrent at 89 cm. In 1939 the 

 growth layers are thicker and more numerous outward. 



Table 13.— TTC 5'7 



1937 



1938 

 1939 



74 cm. 

 2 see 



I s are 

 I see 



I see 

 I ddw 



41 cm. 



1 see 



2 psce 

 I sL 



I see 

 I sL 



I see 



Table 14. — TTC 5-(5 



1939 



1940 



Branch cut off September 28, 1940. 



