Rings of Wood 



79 



there would result an opening to the central stem, 

 such as we often find in old trees. Near Tintern 



SECTIONAL VIEW OF YEW-TREE IN NORBURY PARK. 



there are several trees showing this peculiarity in 

 growth. One of 

 these is especially 

 noteworthy as ex- 

 hibiting what I 

 have never before 

 seen the simul- 

 taneous growth of 

 two rings after the 

 death of the main 



stem, which has a 

 diameter of i foot. 

 The circumference 





of the Outer circle SECTIONAL VIEW OF YEW-TREES AT TINTERN. 



is 1 5 feet, and in sixty or seventy years the individual 



