216 



THE BARK. 



that half a dozen may be enclosed between 

 two pages of a lady's pocket-book^ without 

 touching each other." 



how I should like to have one of those 

 pretty little trees !" exclaimed Amelia. 



I am afraid/' rejoined ^^that it would 

 be too tender to bear being taken up and 

 planted roots uppermost ! 



It does not appear that so much sap is 

 sent through the solid timber of the tree as 

 through the bark. This is always, by much, 

 the most juicy, and it is from this part that 

 turpentine, gum, resin, and other forms of the 

 sap, are obtained from trees. There are very 

 few trees which do not die, if the bark be 

 stripped off all round ; but most of them will re- 

 produce it, if only a small portion be left. As 

 the tree grows, the inner bark slowly becomes 

 timber, or sap-wood, the outer bark cracks and 



