FORMATION OF ASPARAGINE IN PLANTS. 
453 
BARLEY (I). 
TOTAL NITROGEN. 
Plants in 
Sugar 
Dry matter 
used. 
Gram. 
1. 0.467 
2. ,, 
Baryta waterC 1 ) 
replaced. 
c. c. 
II -5 
IX *S 
Percentage of 
nitrogen. 
4.60 
Urea . 
Urea and sugar 
Ammonium 
Ammonium 
and sugar 
chloride 
chloride 
Control plants 
Original plants 
0.460 
99 
0.465 
99 
0.470 
99 
°459 
99 
04705 
99 
O.477 
99 
13.6 
14.0 
12.4 
12.2 
1 4 .1 
14.4 
12.1 
12.3 
12.7 
12.7 
I2.9 
I 3 -I 
- 
. 
O.O260 
O.O232 
0.0270 
O.O23O 
O.O239 
O.O245 
5-65 
4.98 
5-73 
5.00 
5.10 
5-13 
(1) 5 c c. 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. 
