18 



fail, and then the accumulated salt remains in the soil 

 to hamper vegetation in the following summer. 



Water pumped from deep wells in the Globigerina 

 formation is always more or less hard owing to the car- 

 bonate of lime held in solution by an excess of carbonic 

 acid. Such water should be pumped into an * open 

 reservoir where it is allowed to remain for two or three 

 days to deposit the excess of carbonate of lime, and to 

 become properly aerated by absorbing its full share of 

 atmospheric oxygen. Freshly pumped water is also 

 decidedly colder than the ground water, and if allowed to 

 remain for some time in open reservoirs in summer, its 

 temperature is raised and the roots will be spared a 

 shock, which is sure to prove detrimental to the organism 

 of the tree, at least momentarily. 



