Indian Forest Records . 
[VoL. 1. 
ist 
Figure 2. Longitudinal section of a Sal tree in an even-aged crop, United Provinces. 
Section 5. — Volume Increment. 
Laws which govern the volume groivth of single trees in general : 
I. — The volume increment of a seedling is very slow at the coinmencement of 
its life ; but it increases continuously year by year, fairly fast in some 
Species, slower in others in many cases even until the ti'ee reaches 
complete maturity. As a rule, however, the annual volume increment 
reaches a maximum about the time the height growth ceases, and 
thereafter remains constant. 
II. — The average annual increment does not as a rule culminate before the 
usual age of exploitation has been reached, but this depends on 
species. 
