176 
FIRST BOOK. 
that the flowers come in small spikes at the end 
of the branches. They knew that the seeds grow 
in pods, and have little ''wings" on them which 
make them very light. And they had often seen 
the seeds carried off by the wind, as they fell 
from the ripe pods. 
In this way many of the seeds are sown, so 
that it is always easy to obtain young trees. 
5. During the rainy season the seedlings are 
dug up, and planted where they are to grow. 
Sometimes they are placed in a row, and, as their 
young boughs grow close together and overlap 
each other, they form a good hedge. 
LOGWOOD.— 11. 
1. '' It is the trunk of the tree that is of most 
use to us," said Mr. Scott. " Here is a slice of 
logwood, which I have had cut that you may see 
what part of the wood is used. 
2. ''At the outside you see a ring of dark, 
rough bark. The wood close to it is softer and 
of a lighter colour than the rest, and is the 
youngest part of the trunk. This part is called 
the sap-ioood, and the inner and harder part is 
the heart-wood. 
3. " See what happens when I drop this piece 
of heart- wood into a bowl of water." 
