43 ^ 
SUZUKI ; 
i gram of air dry sample of the plants in ammonium nitrate 
yielded 
0.0019 gram nitrogen ( —2.occ. baryta solution (1) ) = o. 19^ nitrogen. 
i gram of air dry sample of the plants in sodium nitrate yielded 
0.0008 gram nitrogen ( = 0.8cc. baryta solution 03 ) =0.08% 
nitrogen. (2) 
BUCKWHEAT (II.) 
ASPARAGINE NITROGEN. 
Plants in 
Fresh sample 
used in grams. 
Baryta waterd) 
replaced in cc. 
Nitrogen found 
in grams. 
Percentage of 
nitrogen ( = | 
asp. nitrogen.) 
Ammonium chloride... 
5-0 
54 
0.005 1 
0.10 
Ammonium nitrate ... 
5 -o 
3-2 
0.0030 
0.06 
Sodium nitrate . 
5-0 
1.6 
0.0015 
0.03 
Control plants . 
5 -o 
14 
0.C013 
0.03 
AMMONIACAL NITROGEN. 
Plants in 
Fresh sample 
used in grams. 
Baryta water 0 ; 
replaced in cc. 
Nitrogen found 
in grams. 
Percentage of 
nitrogen.) 
Ammonium chloride... 
745 
6.0 
0.0057 
0.08 
Ammonium nitrate ... 
6.20 
2.7 
0.0026 
0.04 
(1) I c.c. of the baryta solution = 0.0009447 gram nitrogen. 
( 2) There are doubtless also traces of asparagine decomposed by calcium 
hydrate at the ordinary temperature ; the small quantities of ammonia obtained from the 
control plants and the plants in sodium nitrate seem to be due to this source. Control 
test with Nessler’s reagent (added to the cold extracts of the control plants and plants in 
sodium nitrate) lead me to this inference. 
