328 



Table I. — Average Annual Growth oj Sequoias. 



Groups I to 111 are matuie trees at Hume. Sections were cut from them in 1912. Groups marked A grew in damp places; those 

 marked B in dry places Tlie trees of Group IV consist of young trees that grew at Dillon wood; those m group A are trees 

 which began to grow before 1800 a. d.; those in group B are trees which began to grow before 1883. Group V consists of 

 mature trees which were cut in 1911 at Camp No. 2, Hume. The number of trees and measurements is as follows: I— A, 22 trees, 

 23 measurements; I—B, 14 trees, 14 measurements; II— A, 2.5 trees, 31 measurements; II— B, 18 trees, 18 measurements; III— A, 

 22 trees, 25 measurements; IV— o, 5 trees, 8 measurements; IV—*, 19 trees, 46 measurements; Y—A, 11 trees, 18 measurements. 

 (See figures 42, 43, 44, and 48.) 



♦The unweighted means are obtained by adding all the totals aud dividing by the number of measurements. lu the weighted means the different groups 

 have been given such a weight that the value of a single measurement is the same, no matter whether the average growth of the group is great or small. 



