14 



PROPERTIES OF WOOD. 



formed later on towards the close of the growing season, so 

 that a wide-pored early wood may be distinguished from 



Fig. 6. Diagram of a shoot, showing first year's growth (lined), and 



second year's growth (dotted). 



a Terminal shoot, first year. I Terminal shoot, second year ; dark 

 line, pith. /Section of first year's growth. < Section of second year's 

 growth, r, tl Surface of ground. 



the narrow-pored late wood of the preceding year, a fact 

 that facilitates the counting of the annual zones. Hence 



