440 



In the gardens around Sydney trees of E. citriodora have been planted for 

 ornamental purposes, and they grow very well in the Sydney soil and climate ; 

 but we know of no systematic attempt to cultivate this species for oil production. 

 The investigation of the oil from the Sydney grown material showed it to be 

 identical in general characters with that distilled from trees growing naturally 

 in Queensland. 



All the oil of E. citriodora, so far commercially obtained, has been distilled 

 from trees in their native habitat, and as the species grows to a large size the 

 difficulty of obtaining leaf material for distillation by lopping off the branches 

 is apparent, although this method is followed to a considerable extent. 



PLATE Cl. 



EUCALYPTUS CITRIODORA 



Climbing a tree, in order to procure leaves for distillation. 



The accompanying photograph (Plate ci) shows the operator climbing 

 the long, straight stem of the tree for the purpose of lopping off the branches in 

 order to collect the leaves, and illustrates this laborious procedure very well. A 

 tree of the same species is seen on the left of the picture. 



