POPLARS 



G.N. 6713 



Alder, when white, and in the 

 absence of wide rays as may happen 

 in small pieces (vessels scanty in the 

 Autumn wood: a minute, brown, 

 secondary silver-grain produced in 

 radial section by the small rays. 

 which are multiseriate). 



Poplars making brown heartwood 

 may be confused with: 



Alder, when brown, as above. 



Willows (light in weight: colour 

 pinkish-brown: grain fine: watery 

 extract red, deeper in colour than 

 the wood itself)*. 



Pear-tree (wood very compact 

 and solid, surface extremely 

 smooth, rays multiseriate). 



Vessels abundant in the Autumn 

 wood though less so than in the 

 Spring : silver-grain if evident, then 

 of much the same colour as the 

 ground. Rays uniseriate. 



Rays uniseriate. 



No certain feature but the grain 

 much coarser, weight greater: 

 absence of pinkish colour in the 

 white kinds. Watery extract very 

 pale yellow. 



Ravs uniseriate. 



* See also note under "Radial section" to Willow, No. 6712. 



34 



