HIGH TKMrKRATURES AND KUCALYPTS 33 



or where the trees are able to reach the permanent ground water or 

 water table. Under these latter circumstances there is, perhaps, no 

 species that is unable to withstand long-continued drought or un- 

 toward evaporation conditions ; but, if the tree is unable to obtain this 

 supply, water must be specially applied to meet its needs. 



Of the species noted, taking into account the conditions to which 

 they were subjected, the age of the trees, and their treatment, two 

 species, £. rostrata and E. tcreticornis, appear to be the best for plant- 

 ing in regions of high temperatures and high evaporation. This is, 

 in general, in harmony with the known character of the trees. These 

 two species make the most rapid growth and present the best form 

 under the severest conditions ; they withstand both low and high tem- 

 peratures better than the other important species do ; and they are more 

 adaptable than the others to wide ranges of soil and site conditions. 

 Their behavior in the instances now recorded increases the belief in 

 their usefulness for all kinds of planting, and one is tempted to add, 

 "If in doubt, plant cither H. rostrala or H. tcrcticoniis:' 



