FORMATION OF ASPARAGINE IN PLANTS. 



453 



BARLEY (I). 



TOTAL NITROGEN. 



Plants in 



Dry matter 

 used. 



Baryta water(') 

 replaced. 



Nitrogen 

 found. 



Percentage of 

 nitrogen. 





Gram. 



c. c. 



Gram, 







{ i. 0.467 



11.5 



) 





Sugar 





f 0.02I5 



) 



4.60 





( 2 - » 



I T C 







( 1. 0.460 



13.6 



I 





Urea 





y 0.0260 



5-65 





( 2. ,, 



140 



J 





Urea and sugar 



jl. 0.465 



12.4 



) 







V 0.0232 



4.98 





/ 2 



12.2 



) 







f 1. 0.470 



I4.I 







Ammonium chloride 







\ 0.0270 



5-73 





( 2. „ 



14.4 



J 





Ammonium chloride 



[ I. 0.459 



12. 1 







and sugar 





| 0.0230 



5.00 





( 2. „ 



12.3 









\ 1. 04705 



12.7 







Control plants 





t 0.0239 



5io 





1 2 - » 



12.7 









r 1. 0.477 



I2.9 







Original plants 





| 0.0245 



S'3 





I 2. „ 



I3-I 







(i) $cc. standard sulphuric acid were equivalent to 36.5 c.c. baryta solution and 

 yielded 0.5695 gram barium sulphate. Hence I c.c. baryta solution = 0.001883 gram 

 nitrogen. 



