Jan., 1916] 



Evaporation and Plant Zones 



97 



On June 29th an instrument was set up in each of the 

 zones indicated and daily morning readings taken, with the 

 exceptions and interruptions shown in the table, until July 22nd, 

 when the last readings were made. The corrected totals given 

 in the table are for the actual number of days during which 

 every instrument was in working condition. It may be fairly 

 asserted that this period covers, in spite of its shortness, a 

 critical time of year for vegetation so far as actual transpiration 

 is concerned. It will also be noted in the table that all figures- 

 have been reduced to a percentage basis, using the lowest total 

 as 100%. 



Table Showing Daily Water Loss From Each Instrument During Time of 



Experiment. 



Abbreviations for Stations as on Map, Fig. 3. 



