158 



CLIMATIC CYCLES AND TREE GROWTH 

 42 Western Groups 



2 4 6 8 10 12 14- 16 18 20 22 24 26 



Years 



42 Western Groups (Cont'd) 



2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 



Years 



