246 U. SUZUKI ; 



In 100 parts of dry matter. 



Evening. Morning. 



Total nitrogen 4.32 4.26 



Abuminoid nitrogen 3.47 3.70 



Asparagine nitrogen 0.26 0.27 



Amido-nitrogen (4*°^;.) .... 0.63 0.29 



Absolute quantity in 100 leaves (in grams). 



Evening. Morning. Ratio. 



Total nitrogen 1.887 1-797 100:95.2 



Albuminoid nitrogen^^' 1.516 100:103 



Asparagine nitrogen 0.112 0.112 100:100 



Amido-nitrogen (^Yp*°^jM . 0.126 0.260 100:206 



II. Experiments luith Solanaceae. 

 A. Solamivi tuber osuviS^^ 



220 leaves Dry weight. 



j Evening (6 o'clock) 16.887 grams. 



I Morning ( ) 12.360 „ 



^ISSef Dry weight. Ratio of dry matter. 



(Evening 7.680 1 00.00 



I Morning 5.620 73.20 



In 100 parts of dry matter. 



Evening. Morning. 



Total nitrogen • -4.26 5.46 



Albuminoid nitrogen 3.28 4.25 



Asparagine nitrogen 0.30 0.29 



Amido-nitrogen (jf "X.) • • • -O-^S 0.92 



Nitrate nitrogen. Trace Trace 



Starch 12.50 7.40 



(1) This experiment was made on the 5th June. 



