200 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 
and it. only requires protection to become a valuable 
reserve. 
In a subsequent paper I hope to deal with forest-trees and 
forest-produce—embracing the rising country and mountain 
ranges—in a more comprehensive way. With the exception of 
ornamental trees planted about the towns, very few exotic trees 
have been introduced. The Casuarina has become naturalised 
—the seed having been blown over from Zanzibar and 
Madagascar. It is an exceedingly durable wood, and being 
rich in carbon, is one of our very best charcoal woods. It is 
truly a marvellous tree, luxuriating as it does in Africa, Arabia, 
Egypt (on the banks of the Suez Canal), the dry plains of India, 
on the mountain ranges at 6000 feet elevation, in the West 
Indian Islands, the islands of the South Pacific Ocean, etc. It 
has travelled far from its native habitat—Queensland. 
