LIMIT OF PHYSIOLOGICAL WATER 



41 



Ambrosia artemisiifolia... . 



Ambrosia artemisiifolia 



Atriplex argentea 



Atriplex argentea 



Cassia marilandica 



Chaetocliloa viridis 



Ciiaetochloa viridis 



Elymus nanadensis 



Elymus canadensis 



Eupliorbia marginata 



Grindelia squarrosa 



Gaura parviflora 



Helianthus annuus 



Heliauthus annuus 



Hordeum jubatum 



Hordeum jubatum 



Lob lia syphilitica 



Leptilum canadense 



Nasturtium officinalis. . . . 

 Oxalis stricta 



Oxalis stricta 



Panicum crus-galli 



Panioum crus-galli 



P. proliferum 



P virgatum 



P. waiter! 



Plantago purshii 



P. rugelii 



Sporobolus vaginiliorus . , 



Syntherisma sanguinalis . 



G-aura biennis 



Chaetochloa glauca 



Sonchus arvensis 



Verbena hastata 



Verbena hastata 



Verbena urticifolia 



Average, 37 species 



PLANTHOUSB. 





g^ 



3.4 

 03 

 4,1 

 43 

 4.4 

 46 

 5.3 

 53 

 5.6 

 4.3 

 6.8 

 4.8 

 7.8 

 7.5 

 5.8 

 5.3 

 8.3 

 6.1 

 3.4 

 4.8 

 7.9 

 63 

 5.5 

 9.7 

 10.0 

 6.5 

 5.8 

 4.5 

 34 

 6.6 

 5.9 

 76 

 5.1 

 34 

 0.3 

 6.6 

 5.4 



^- 9 



27.8 



34.4 



260 



37.1 



18,0 



18.8 



31,9 



18,6 



36.5 



50.9 



45.9 



39.9 



33.8 



19.8 



33.0 



43.3 



43.6 



17.1 



62.5 



11.1 



17.4 



31.6 



25.2 



42.9 



50 5 



35.4 



33.2 



34.7 



13,0 



37.3 



38.3 



35.5 



37.8 



17.3 



36.7 



13.5 



38.6 



LABORA.TOBy. 







13.4 

 0.3 

 7.3 

 8.9 

 7.0 

 5.1 

 5.6 

 5.8 

 73 

 6.7 

 8.8 

 6.5 

 5.5 

 8.3 

 67 

 3.6 

 10 

 9.7 

 4.3 

 6.6 

 8.8 

 6.8 

 6.8 

 6.9 

 13.6 

 7.5 

 8.8 

 6.3 

 4.1 

 7.3 

 5.4 

 7.2 

 7.7 

 6.0 

 0.3 

 5.7 



a 



03 

 ■" bo 



^^ a 



65.7 



15.0 



20 



35 6 



55.4 



13.8 



15.4 



23 8 



23.7 



46.1 



44.2 



13.0 



18.2 



37.9 



28.7 



12.4 



40.2 



14.3 



19.4 



13.0 



22.2 



25.0 



25.2 



37.6 



43.7 



33.7 



16.1 



37.6 



16.3 



37.7 



13.7 



16.7 



33 3 



13.5 



105 



39.0 



37.2 



