246 K. MIZAKE. 
Result with NaHC0 3 . 
Total number of 
Concen- 
Date 
germinated seeds 
up to 
Germina- 
tration 
June 
July 
June 
June 
June 
t ion 
Capacity 
18 
19 
20 
21 
22 
23 
24 
26 
27 
28 
29 
3o 
1 
2 
3 
4 
5 
6 
21 
22 
23 
I N. 
I 
I 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
2 
0 
0 
3 
0 
0 
0 
0 
2 
2 
2 
7 
i N. 
4 
2 
2 
3 
22 
27 
13 
8 
5 
0 
0 
0 
2 
1 
0 
0 
3 
0 
0 
0 
33 
60 
75 
89 
A N - 
2 
2 
3 
4 
17 
38 
14 
13 
1 
1 
1 
1 
0 
0 
0 
0 
0 
0 
0 
0 
29 
67 
81 
97 
& N. 
5 
I 
4 
2 
23 
36 
14 
7 
1 
1 
1 
1 
0 
0 
0 
0 
0 
0 
0 
0 
35 
7> 
85 
96 
t3ö N. 
10 
2 
I 
10 
25 
3i 
6 
4 
2 
2 
1 
1 
0 
0 
0 
0 
0 
0 
0 
0 
48 
79 
85. 
95 
3*0 N. 
3 
I 
3 
8 
25 
36 
10 
3 
1 
2 
1 
1 
0 
0 
0 
0 
0 
0 
0 
0 
40 
76 
86 
94 
iooo i>1. 
1 
3 
4 
8 
22 
35 
8 
3 
3 
1 
1 
1 
1 
0 
0 
0 
0 
0 
0 
0 
38 
75 
81 
91 
5000 iN * 
8 
1 
I 
5 
25 
34 
9 
4 
3 
2 
1 
0 
0 
0 
0 
0 
0 
0 
0 
0 
40 
74 
83 
93 
Control 
4 
1 
1 
4 
=3 
34 
10 
6 
5 
2 
2 
0 
0 
0 
0 
0 
0 
0 
0 
0 
33 
67 
77 
92 
For convenience, the results above tabulated are brought together in 
the following table. (See p. 247). 
As a result of the observation of above table, it is evident that each 
salt except magnesium sulphate and sodium bicarbonate, in concentrations 
greater than 1/5 normal was decidedly toxic upon the germination ot 
rice seeds while the latter two salts were toxic in concentration of 1/2 
normal. It is further evident that all the salts except sodium bicarbonate 
in concentrations greater than 1/10 normal seemed to delay the germina- 
tion while sodium bicarbonate showed the same effect in concentration ol 
1/5 normal. Moreover, it is clear that, in certain dilutions of each salt, 
there were indication of a stimulating action upon the germination of the 
seeds. The maximum stimulation of magnesium sulphate and chloride 
appeared in concentration of 1/5000 normal of each while that of sodium 
