THE EUCALYPTS AS EXOTICS. 15 
tion of each continent of the globe is receiving the benefit of the 
distribution of this useful genus from its native home. In many of 
the above regions the Eucalypts are a conspicuous feature of the 
country, the aspect of the landscape having in some cases been com- 
pletely changed by the planting of these trees. There are undoubtedly 
many other parts of the earth yet to be benefited by the introduction 
and extensive planting of species adapted to the climatic conditions. 
The tests of various species made in Arizona by the writer, during 
the past three years, indicate that there are species of Hucalypts 
adapted to many regions where they have not been tried. These 
experiments indicate also that in localities where it has been supposed 
they could not be grown successfully as forest trees suitable varieties 
have not been tried. There is need of a careful study of these trees 
in their native habitats, in order to determine what species may be 
introduced into regions with climate and soil similar to those of the 
districts in which the respective species grow naturally. 
IN SOUTHERN EUROPE. 
According to Baron von Mueller HKucalypts were first planted in 
Europe in the botanic garden of Naples, in the early part of the last 
century. but their value as forest trees was not recognized any- 
where in southern Europe until after the middle of the century, and 
in Italy not until 1870. During the past forty years their culture has 
increased rapidly. Claude M. Thomas, American consul at Marseilles 
in 1894, states, in Consular Reports No. 168, that ‘‘ the cultivation of 
the Eucalyptus is receiving much attention from thoughtful men, 
wherever in Kurope climate and soil are of a character adapted to its 
growth.” 
The French botanists and gardeners were pioneers in studying 
Eucalypts and in distributing them throughout southern Europe. 
Their interest seems to have continued unabated for nearly half a 
century, more publications on the culture and uses of the Eucalypts 
having appeared in the French language in that time than in any 
other, and probably more than in all other languages in which such 
treatises have been written. The EKucalypts were introduced into 
France during or before 1854, and during the succeeding quarter 
eentury were planted extensively. Planchon said in 1875: | 
Now the entire region from Cannes to Monaco displays to the traveler * * * 
the aspiring branches of the Eucalyptus, with their scythe-shaped leaves trembling 
beneath the slightest breeze, and withstanding the repeated and violent winds from 
the east. 
M. Henri Carreron, in an article in a recent number of the Journal 
de Genéve, makes the following statements concerning the present 
prevalence of Eucalypts in southeastern France: 
A Provencal who has not seen the Cote d’ Azur for the last forty years would not 
