l66 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I40 



branch. In 1938, the sharp lenses at 96 cm. are compound ; at 79 cm., 

 the sharp lens is concurrent ; and at 67 cm., the lens has become one 



long growth layer which is almost entire. The sharp lens of 1940 is 

 concurrent. 



Table 105.— XSC 2-2 



g6 cm. 79 cm. 67 cm. 



1934 I see I see i see 



I dL I msL 2 sL 



/ 



1935 6 see 6 see 7 see 



I sL I sL 



1936 5 see 5 see 5 see 



3 sL 3 sL 4 sL 



I msL I msL 



1937 2 see 2 see 2 see 



1 dee I dee i dee 



1938 I see I see i see 



2 sL I sL I sL 



I dL 

 arcs 



1939 I see I see i see 



I sL I sL I sL 



I msL 



1940 2 see 2 see 2 see 



I sL 



inc inc 



Table 106.— X5'C 2-3 



74 cm. 57 cm. 38 cm. 



1934-193S 6 msee 6 msec 6 msee 



1 psL I psL I psL 



1936-1937 6 msee 6 msee 6 msee 



2 sL 2 sL 2 sL 



1938 I see I see i see 



I sL I sL I sL 



ddw ddw ddw 



1939 I see I see i see 



I sL I sL I sL 



ddw ddw ddw 



1940 I see 2 see 2 see 



I sL 



Branch XSC 2-3 (table 106) was cut from the tree April 11, 1940, 

 but had not been frozen artificially. Because of the absence of natural 

 frost effects in 1935 and 1937, the annual increments for 1934-1935 

 and 1936-1937 could not be differentiated. The lenses of 1938 and 



