38 



LOUISE DOSDALL 



TABLE 6 



Comparative transpiration of Equisetum and other plants, 7.30 a.m. to 5.30 p.m., 



May 4, 1917 



The humidity and temperature were respectively as follows: 7.30 a.m., 70%, 70°; 

 12 noon, 28%, 78°; 5.30 p.m., 20%; 85° 



TABLE 7 



Comparative photosynthate of Equisetum and other plants. Readings under same 



conditions as in table 6 



PLANT 



Equisetum fluviatile 



7.30 a.m 



5.30 p.m 



Helianthus annuus 



7.30 a.m 



12 noon 



5.30 p.m 



Phaseolus vulgaris 



7.30 a.m 



12 noon 



5.30 p.m 



GMS. DRIED 

 LEAF USED 



0.2100 

 0.2884 



1.0446 

 0.9354 

 0.6674 



1 . 509 

 1.015 

 2.4540 



AREA SQ. 

 D.M. 



0.6 

 0.68 



3.785 

 2.907 

 2.68 



7.54 



5.17935 



7.67 



GLUCOSE MGS. 

 PER SQ. D.M. 



29.0 

 44.0 



0.52 

 11.35 



28.54 



16.81 

 52.59 

 61.72 



MGS. GLUCOSE 

 PER SQ. D.M.' 

 DURING DAT 



15.0 



10.83 

 28.02 



35.78 

 44.91 



