ON AN IMPORTANT FUNCTION OF LEAVES. 



245 



Absolute quantity in 



100 leaves (in 



grams). 









Evening. 



Morning. 



Ratio. 





, ,0.8160 



0.7270 



100 : 



89.1 







0.5955 



100 : 



: 90.1 





0.0300 



0.0170 



100 ; 



: S7.0 



Nitrogen in amides(4'^°S.) 



0.1250 



O.I 145 



100 



:9r.S 







1.4560 



100 



: 71.0 



C. Phaseohis vulg-aris^^^ 



50 leaves. Dry weight. Ratio of dry matter. 



Evening 12.765 100. 



Morning 12.222 95.7 



In 100 parts of dry mitter. 



Evening. Morning. 



Total nitrogen 3.39 3.39 



Albuminoid 2.75 2.56 



Asparagine nitrogen 0.20 0.20 



Nitrogen in amides (asp.^^nS.) • • 0-44 0.63 



Starch 23.10 16.10 



Absolute quantity in 100 leaves (in grams). 



Evening. Morning. Ratio. 



Total nitrogen 0.8660 0.8290 100:95.7 



Albuminoid nitrogen 0.7021 0.6260 100 : 89.1 



Asparagine nitrogen 0.0510 0.0490 100:96.0 



Nitrogen in amides(^^''^'°|J|.) . .0.1129 0.1540 100:136.4 



Starch 58970 3-9350 100:66.8 



D. Piieralia ThnmbergianoF^^ (Kuzu) 



50 leaves. Dry weight. Ratio of dry matter. 



Evening 21.854 100. 



Morning 21.099 96.5 



(1) Experiment was made on Oct. 29th. 



(2) Experiment was made on June i8th. 



