30-i TRANSACTIONS AND PROCEEDINGS OF [Sess. lvi. 



(4) Distribution of Girth-increase over the growing 



season. 



(5) Proportion of Girth-increase in the first and 



second halves of the growing season. 



The number of trees upon which the results are based 

 varies under the dift'erent heads, for reasons given in the 

 text ; and sometimes the new set is used alone, sometimes 

 the old is taken in, either separately, or in conjunction with 

 the new. 



(1) Deciduous Trees. 



(n) IMonthly Amount of Girtt-increase in thirty young Deciduous 

 Trees, individually and collectively. 



The complete set of monthly increases in these young 

 trees for the five years 1887 to 1891 are given in Table 

 IV., followed by some of the general results, individual and 

 collective, to be derived from it. 



TAJiLIi IV. 



