52 



CLIMATIC CYCLES AND TREE-GROWTH. 



the upper side of the tree in which the rings may be observed. These 

 rings are large, and various estimations of the age of the tree obtained 

 in two different visits gave an average of 2,500 years. Near the General 

 Grant Tree is the stump of what was known as the Centennial Tree. 

 It was said that a section of this tree was exhibited in 1876. Since 

 then the stump has been badly burned and is in poor condition for 

 cutting a sample. Some estimate of the rings showed their size to be 

 large, and the age of the tree, therefore, was not very great, perhaps 

 1,800 years. This confirms the estimate of the General Grant Tree 

 near by. 



TABLE 5. Sequoia list. 



1 Omitted from the means on account of some deficiency in identification. 



2 Identification very nearly right. 



3 Not identified after 1130 A. D. 



Leaving the vicinity of the General Grant National Park and going 

 south to Porterville, thence by rail to Springville, a 3 days' trip was 

 arranged to the old Enterprise millsite. Camp was made at the cabins, 

 about 10 minutes' walk below the millsite. On going up from the 

 camp, No. 23, known as the Centennial Stump, was found at once, 

 as it is of enormous size, high in the center, and covered with names of 

 visitors. It is located close beside the road and near the wash, about 

 100 yards from the clear space once occupied by the Enterprise Mill. 

 The oldest tree which Huntington found at this locality had been 



