104 



J. W. SHIVE AND B. E. LIVINGSTON 



ra,tes are concomitant with low residues, but the arrangement 

 of the five main averages is not here nearly so consistent as in 

 the case of series I ; it appears that the main averages (2) and (4) 

 are relatively low as compared to the averages (3) and (5). 



The graph of figure 2, in which notations and arrangements 

 are the same as in figure 1, brings out the point just mentioned, 

 as well as other relations. 



P.C 



7.0 _ 



e.o 



3.0 



SERIES II 

 Ctabue: III.) 



Y= 3.80 



a.o 



3.0 



Fig. 2 



The superficial generalizations drawn from the results of series 

 I (table II and fig. 1) are supported by the data here set forth. 

 The soil moisture residues at permanent wilting become smaller 

 with lower intensities of atmospheric evaporating power, but no 

 actual soil moisture residue was obtained in this series which was 

 not considerably greater than that indicated by the value cal- 



