10 



PLANTING, 



Oriental plane () has the primary rays regular but closely arranged ; 

 re somewhat wavy ; the cellular texture of the concentric layers 

 but slightly marked. 



The sycamore (/) in texture approximates to the plane: still, however, 



ry distinct in its straight lined rays, which are very minute or slender. 



The cellular texture is composed of such minute cells as scarcely to be 



perceptible under a four power microscope ; these cells are, however, very 



numerous. 



The poplar (???) has the wood composed of rays so slender as not to be 

 obvious to the naked eye. The concentric layers are composed of ex- 

 ceedingly minute cells. This wood is extremely porous ; the cells of 

 uhicli it is composed are so numerous that a very thin slice of the wood, 

 n hori/ontully, exhibits the appearance of the finest possible open 

 net-work. 



Common acacia, or locust, (//) has wood which bears some resemblance 



t;> that of the oak ; but it is very distinct from any other kind mentioned 



here; it wants the distinct primary rays so prominent in the oak, the 



of the locust being all nearly of equal breadth, and as slender as the 



;idary rays of the oak ; here they are somewhat wavy. The cellular 



or tubular structure is also very different from that of the oak, being 



