58 



LIST OF USEFUL TREES \VITH REMARKS. 



Of the wood 

 timber. 



Encalyptua 

 varieties. 



pletely drained, aud the place become a sanitarium for inva- 

 lids. In Algiers the planting of the Eucalyptus has, in nu- 

 merous cases, banished malaria by simply draining the laud. 

 The tree is of very great use here for ordinary building 

 purposes, the thinnings at eight years of age makes excel- 

 lent rafters and wall plates, nor do they easily decay if the 

 bark is kept on and the wood protected. Planking from 

 older trees lasts fairly well, if not exposed to damp, but this 

 is no test as we have no timber so to speak ; the oldest trees 

 being only twenty-five years old, and nothing being con- 

 sidered timber under forty years. I may here observe that 

 by steeping the planks in a tank of water which contains 

 ^i_ part of lime, the durability is much increased. There is 

 no necessity for putting more than one cubic foot of lime 

 to six hundred cubic feet of water, as no more lime can be 

 taken up by the water the theory is that the water forces 

 out the sap and deposits lime in the capillary tubes. 



In the year 1862 I obtained a large variety of Eucalyptus 

 from Australia, none of the Jarrahs succeeded, it being too 

 cold for them, but the red gum Eucalyptus rostrata has 

 done well, it is reckoned a most valuable timber in Australia, 

 it is nearly allied to Jarrahs ; Eucalyptus Amygdalina also 

 grows well this tree is reported to exceed even the Welling- 

 tonia Gigantea in height, trees of nearly five hundred feet 

 in height having been measured. The grain of Eucalyptus 

 Globulus is similar to that of the ash. 



I may here remark that as a rule plantations 6 X G succeed 

 best as the trees draw each other up, and fine straight stems 

 are the result. Thinning out is best at eight years in aver- 

 age situations, of course, there are plantations in very rich 

 soil that require thinning even at six years. Some years 

 ago, Forest Report, 1861-62, I compared the growth of the 

 Eucalyptus with Teak at Nellutnbore and Oak plantations in 

 Knglsiml, and found that Teak grows twice as fast as Oak, 

 and Eucalyptus twice as fast as Teak. I have already iiu-n- 

 tioned another example, there are some twenty-five trees 

 planted in front of my present house, I know their age to be 

 about twenty-five years, they are one hundred and forty 



