ESSENTIAL OIL OF EUCALYPTUS SMITHII. 161 



Plate XV. This tree, one foot nine inches in diameter, 

 was felled in 1909. The photograph was taken in 1911. 

 The growth is all from the stump, and shows about 

 twenty " suckers" of various sizes, the largest being three 

 inches in diameter. 



Plate XVI. Growth of leaves on seedling stems which 

 had been trimmed for oil distillation three months pre- 

 viously. 



Plate XVII. Showing twelve months' growth of leaves 

 on seedlings which had been felled stump high. 



Plate XVIII. Growth of leaves on big tall trees the 

 branches of which had been lopped off two years previously. 



Plate XIX. Seedlings which have sprung up thickly 

 when other Eucalyptus growth had been cleared away. 

 This is a good illustration of natural Eucalyptus affores- 

 tation. E. Smithii appears to be rather delicate in its 

 early stages, and in the struggle for existence is crowded 

 out by such species as E. piperita, E. eugenioides, E. quad- 

 rangulata, etc.; but, if assisted to get a start, the result is 

 as shown. Perhaps this peculiarity is the reason the trees 

 of this species are often sparsely distributed. 



Plate XX. Seedlings between two and three years old. 



Plate XXI. The branches of this large tree had been 

 lopped off. Through some reason the top of the tree died. 

 The dense growth is an illustration of the vitality in the 

 lower portion of the tree. 



Plate XXII. Shows twelve months' growth from a 

 lopped tree (the tall one on the right), and from felled 

 trees (those in the foreground and on the left). The 

 spreading tree in the background is not this species. 



Plate XXIII (foliage). The form of leaf, (A) was alone 

 produced until the seedling had grown nearly six feet 

 in height. The rate of growth for about two weeks then 



K— August 4, 1915. 



