22 



TRANSPIRATION IN A DESERT PERENNIAL. 



TABLE 5. Transpiration of a branch in leaf (e) of an adult tree. Experiment V. 

 Date, March 29, 1911. 



Time. 



8 04 a.m.. 



8 08 a.m . . 



9 14 a.m.. 



9 19 a.m.. 



10 19 a.m.. 



10 24 a.m.. 



11 22 a.m.. 



11 36 



T. 



Time. 



E. 



a.m \ 



I 



12 24 p.m 



12 39 p.m 



1 53 p.m 



2 11 p.m 



3 20 p.m 



3 24 p.m... 



4 28 p.m 



.00618 



.00835 



.00636 



.00545 



.00480 



.00193 



I/ 7 h 05"'a.m... ...\ 



1\ 7 58 a.m / 



It 8 11 a.m \ 



||\9 10 a.m / 



f 9 21 a.m \ 



\10 10 a.m / 



/10 26 a.m \ 



\11 15 a.m / 



fll 38 a.m... \ 



ill 15 p.m / 



/12 42 p.m \ 



45 p.m / 



0.030 

 .037 

 .046 

 .050 

 .051 

 .052 



0.126 

 .166 

 .181 

 .079 

 .124 

 .105 



Time. 



2 11 p.m.. 



3 20 p.o... 



3 24 p.m.. 



4 28 p.m.. 



71-03-a.m 



8 04 a.m... 



( 8 08 a.m. 



I 9 14 a.m. 



f 9 19 a.m., 



110 19 a.m. 



flO 24 a.m 



[11 22 a.m 



fll 36 a.m 



[12 24 p.m 



(12 39 p.m 



( 1 53 p.m 



Dew-point. 



Plant. 



e. 



-3.0 

 -9.0 



-7.0 

 0.5 



-2.0 

 0.0 



-2.0 

 0.0 



-4.5 

 -2.0 



-4.5 

 -0.5 



-5.0 

 -5.5 



-4.5 



-5.0 



3.0 

 8.5 



7.0 

 0.2 



2.0 

 0.5 



2.0 

 0.3 



4.5 

 1.6 



4.5 

 1.6 



Air. 



C. 

 -3.0 

 -7.0 



-7.0 

 -2.0 



-2.0 

 -2.0 



-2.0 

 -4.0 



-4.5 

 -4.5 



-4.5 



-4.5 



-5.0 

 -4.5 



-4.5 

 -4.0 



Temperature. 



1 F. 



66 



72 



72 



90 



91 



F. 

 66 

 71 



72 

 83 



83 



88 



88 



90 



84 



Relative humidity. 



Plant. At e m f r m " Air. 



p. ct. 

 22 

 12 



14 

 19 



14 

 14 



11 

 13 



