THE PHYSIOLOGICAL ROLE OF WATER IN PLANTS. 21 



necessarily have not the same soils to irriyate nor the same ciops, and, 

 consequently, there will be a serious complication in distributing the 

 water, the demand for which is periodical and not constant. Neverthe- 

 less, to all those who are personally interested in jyroper irrigation the 

 deductions from our theoretical investigation are commended. Ilie 

 application of these suggestions will certainly result in a much more 

 valuable ijroduct. 



