BIRCH G.N. 6702 



Tulip-tree (rays clearly visible at Rays just visible to the naked 



arm's length). eye. 



Sycamore (rays very bright, Very inconspicuous rays, 

 visible at arm's length). 



Field Maple (great solidity : Very inconspicuous rays : vessels 



vessels not in oblique lines but in oblique lines, 

 scattered). 



Poplars (vessels if tending to Vessels in oblique lines which 



oblique lines, yet the latter are pass right across the rings when 



rarely developed in the Spring latter are well developed: rays 



wood: rays uniseriate). multiseriate, firm and straight. 



Horse Chestnut (uniseriate rays, Multiseriate rays, rather coarse 

 fine pores, light weight, soft and pores, medium weight and hard- 

 warm to the touch). ness: cold to the touch. 



24 



