472 
ISHIZUKA ; 
Nitric anhydride in 
Objects. 
Date of analysis. 
100 parts of dry 
matter. 
/ 
Sept. 2i. 
0.13 
C/Î 
• 3 < 
Solatium Melongena . 
Sept. 30. 
O.II 
Benincosa cirifera . 
Oct. 24. 
p 
-<r 
00 
Nov. 28. 
0.52 
( 
Oct. 19. 
O.II 
Daucus Caro ta . 
Oct, 3 1 - 
0.06 
Oct. 3. 
'■35 
Allium fistuloswn . 
cn 
-*-» 
O 
Nov. 9. 
0.17 
O 
<v \ 
-+-i 
Nov. 22. 
3-25 
o 
if) 
Raphanus sativus . 
Febr. 24. 
2.85 
Apr. 7. 
2.50 
Nov. 22. 
1.16 
Brassica campestris . 
• 
V 
Febr. 29. 
0.90 
/ 
Nov. 9. 
i.00 
Brassica oleracea (sprouts). 
Nov. 31. 
cn 
g 
°-95 
OJ 
cn 
Raphanus sativus . 
Sept. 24. 
4.14 
tn 
<D 
Oct. 21. 
2.44 
> 
<D 
] 
H — 1 
Brassica campestris .. 
Sept. 24. 
2.81 
Oct. 21. 
2.12 
V 
From this table it becomes quite evident that the amount of 
nitrates in the different cases decreases more or less on keeping 
the objects. 
I directed my attention further to the amount of nitrates 
found in the same plants at different seasons, especially in such 
plants, as serve generally as food, viz., the root of Raphanus 
sativus and Brassica campestris , commencing the determination 
