EUCALYPTUS TREES. 109 
Alps, fully one hundred bushels on one acre in a year, 
worth so many dollars. If once established, such a 
plant would gradually spread on its own account for 
the benefit of future highland inhabitants. The Su- 
gar Maple would seek these cold heights, to be tapped 
when the Winter snow melts. For half a century it 
will yield its saccharine sap, equal to several pounds 
of sugar annually. 
Let us translocate ourselves now for a moment to 
our desert tracts, changed as they will likely be many 
years hence, when the waters of the Murray River, 
in their unceasing flow from snowy sources, will be 
thrown over the back plains, and no longer run en- 
tirely into the ocean, unutilized for husbandry. The 
lagoons may then be lined, and the fertile depres- 
sions be studded with the Date Palm ; Fig-trees, like 
in Egypt planted by the hundreds of thousands to in- 
crease and retain the rain, will then also have ame- 
liorated here the clime; or the White Mulberry-tree 
will be extensively extant then instead of the Mallee 
scrub ; not to speak of the Vine, in endless variety, 
nor to allude to a copious culture of Cotton in those 
regions. To Fig-trees and Mulberry- trees I refer 
more particularly, because it must be always in the 
first instance the object to raise in masses those utili- 
tarian plants which can be multiplied with the ut- 
most ease, and without any special skill, locally, and 
which, moreover, as in this case, would resist the dry 
heat of our desert clime. When recommending such 
. 2 culture for industrial pursuits, it is not the aim to 
plant by the thousand, but by the million. Remem- 
ber, also, that a variety of the Morus Alba occurs in 
Affghanistan, with a delicious fruit ; and that the im- 
