22 



PLANTING OF WHITE PINE IN NEW ENGLAND. 



planted white pine for twenty-eight years, and Table 10 of native 

 white pine for eighteen years in the same region and under similar 

 conditions. 



TABLE 9. Growth of planted white pine, Moultonboro, N. H. 



PLANTATION OF ISAAC ADAMS. 

 [Based on 25 trees 28 years planted.] 



TABLE 10. Growth of native white pine, Moultonboro, N. H. 



OWNED BY ISAAC ADAMS. 



[Based on 50 trees 12 to 18 years planted.] 



A comparison of the above tables discloses several suggestive facts. 

 In the first place, the growth of the planted pine during its first 

 eighteen years was more than double that of the native pine for the 

 same period. The ratio of increase, however, is by no means uniform. 

 On the contrary, there is a well-defined difference in the way in which 

 the tree has made its height growth under the two sets of conditions, 

 which the continuation of the table for planted pine through the 

 twenty -eighth year makes still more evident. The planted pine made 

 its maximum growth (29.1 inches a ) in the tenth year. It began to 

 grow rapidly in the fifth year, and continued to do so pretty uniformly 

 until the seventeenth year had passed. From that point, however, the 

 rate declines gradually, until in the twenty-eighth year the growth is 



a The corresponding figures in the table, being given in feet and carried out only 

 to the first decimal place, makes the growth for this year appear the same with that 

 for the ninth year. Similar apparent discrepancies between the text and the tables 

 are due to the same cause. 



