J. H. Gilbert— Points in connection with Vegetation. 105 





1852: Curr 



nt of washed a 







£ffig% ::.;::: 



II 



Hi 



Hi 



1 



luZer colzL":::::: 



1854 



: Currer 



t of washed air (u 



nder superintendence of a 



Commission). 



I Cress I 0-0099 



S "SB | B 





| Cresi * 0-0039 



racfer superintendence of a 





1855 an 



dl856: JfeJn»a<f.wM0 



3 grams Nitre =0-069 Nitrogen.% 



1 Colza 



1 0-0700 1 



0-07008 1 0-0000 1 1-0 [ 









|C°lza 



-| 0-0700 1 



00680§ 1 -0-0020 j 1-0 | 



1855 and 1856 



: In free air, u 



ith 1 gra 



n Nitre =0-138 Nitrogen.% 





0-1400 



11 



HI: 



1 









IS 



56: In free 



air, with 0-7 



92 grams Nitre =0-1 



Nitrogen* 



Wheat 





0-1260 



olllll o 



0920 1 1-7 j 

















v, I,,, 



air, with 1- 



2 grams Nitre =0-23 



8 Nitrogen* 





1 



0-2590 



| 0-3080§ 



0490 | 1-2 | 













air, with 1- 



65 grams Nitre =0-2 



44 Nitrogen.* 



IWheat.. 



1 



o'-2650 



1 0-2l70| 1 -( 



0480 | 0-8 | 







0850 J 1-3 1 









* Recherches Experimental 



a Vegetation, par M. Georges Ville. 

 ties Experimentales sur la Vegetation, 



