248 U. SUZUKI ; 



In lOO parts of dry matter. 



Evening. Morning. 



Total nitrogen 4.53 4.59 



Albuminoid nitrogen 3.58 3.62 



Asparagine nitrogen 0.44 0.64 



Amido-nitrogen (41'^°^.) ... .0.51 0.33 



Nitrates nitrogen Trace. Trace. 



Absolute quantity in lOO leaves (in grams). 



Evening. !\Iorning. Ratio 



Total nitrogen 1.566 1-504 100 : 96.0 



Albuminoid nitrogen 1-238 1.186 100:95.8 



Asparagine nitrogen O.152 0.2I0 100:138.0 



Amido-nitrogen ^-^/^ 100:61.0 



IV. Experiment zvith Polygo7iaceae. 

 Polygomnn fagopyruni!^^ 



450 leaves. Dry weight. Ratio of dry matter. 



Evening 18.185 100.00 



Morning 16.091 88.40 



In 100 parts of dry matter. 



Evening. Morning. 



Total nitrogen 4.45 4.62 



Albuminoid nitrogen 3.84 4.02 



Asparagine nitrongen 0.22 0.13 



Amido-nitrogen (^^'^Sr.) ■ • • ■ 0-39 0.47 



Nitrates nitrogen o o 



Absolute quantity in 100 leaves (in grams). 



Evening. Morning. Ratio. 



Total nitrogen 0.1798 0.1649 100 : 91.7 



Albuminoid nitrogen 0.1551 0.1435 100:92.5 



Asparagine nitrogen ....... .0.0091 0.0048 100:53 



Amido-nitrogen (Jp*°°4.) • 0.0156 0.0166 100:106.4 



(I) This experiment was made on the 26th Sept. 



