142 



THE ROTHAMSTED EXPERIMENTS. 



TABLE 45. — Summary of the Results of Experiments made at 

 rothamsted ix 1857 and 1858, to determine whether 

 Plants assimilate Free Nitrogen. 



In seed 



and 

 manure, 

 if any. 



Nitrogen. 



In plants, 



pot, and 



soil. 



Gain or loss. 



WITH NO COMBINED NITROGEN SUPPLIED BEYOND THAT IN THE 

 SEED SOWN. 



Graminese \ 1858 



f Wheat 



'1857 \ Barley 



t Barley 



("Wheat 

 < Barley 

 I Oats . 



Wheat 

 Oats . 



S58a i-f 

 c 1857 Beans 

 .1858 

 Other plants 1858 Buckwheat 



Leguminosse \ 



gram. 



0.0080 

 0.0056 

 0.0056 



0.0078 

 0.0057 

 0.0063 



0.0078 

 0.0064 



0.0796 



0.0750 

 0.0188 



0.0200 



gram. 



0.0072 

 0.0072 

 0.0082 



0.0081 

 0.0058 

 0.0056 



0.0078 

 0.0063 



0.0791 



0.0757 

 0.0167 



0.0182 



gram. 



-0.0008 

 + 0.0016 

 + 0.0026 



+ 0.0003 

 + 0.0001 

 -0.0007 



0.0000 

 -0.0001 



-0.0005 



+0.0007 

 -0.0021 



-0.0018 



WITH COMBINED NITROGEN SUPPLIED BEYOND THAT IN THE 



SEED SOWN. 



■Graminese 



'1857 



1858 



(Wheat 

 Wheat 

 Barley 

 Barley 



f Wheat 

 ■! Barley 

 LOats 



[ Wheat 

 .1858a A Barley 

 t Oats . 



{Peas . 

 Clover 



(1858 

 Leguminosse< 



^ 1858a i Beans 

 Other plants 1858 Buckwheat 



0.0329 

 0.0329 

 0.0326 

 0.0268 



0.0548 

 0.0496 

 0.0312 



0.0268 

 0.0257 

 0.0260 



0.0227 

 0.0712 



0.0711 



0.0308 



0.0383 

 0.0331 

 0.0328 

 0.0337 



0.0536 

 0.0464 

 0.0216 



0.0274 

 0.0242 

 0.0198 



0.0211 

 0.0665 



0.0655 



0.0292 



+0.0054 

 + 0.0002 

 + 0.0002 

 + 0.0069 



-0.0012 

 -0.0032 

 -0.0096 



+ 0.0006 

 -0.0015 

 -0.0062 



-0.0016 

 -0.0047 



-0.0056 



-0.0016 



l These experiments were conducted in the apparatus of M. G. Ville. 



