APPENDIX. 

 TABLES OF MEAN TREE-GROWTH, BY GROUPS. 



The tables give the mean growth of the group for each year in 

 millimeters. The decade number in the left column applies to the 

 growth in the adjacent column, and the succeeding 9 years follow along 

 the horizontal line. 



Flagstaff 500-year measures: 2 to 19 trees. 



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