496 
The  Germination  of  Belladonna  Seed. 
Am.  Jour.  Pharm. 
November,  1914. 
Table  X. 
Showing  Strength  of  Acid  Used,  Time  of  Treatment,  and  Designation  of  the  Seed 
in  Each  Case. 
■  Strength 
Time  treated 
of  acid 
Per  cent.* 
1  minute 
10  minutes 
30  minutes 
60  minutes 
92.5 
Ai 
A2 
A3 
A4 
75 
B2 
B3 
B4 
50 
d 
c2 
c3 
c4 
25 
Di 
D2 
D3 
D4 
By  volume. 
Table  XI. 
Relative  Germination  of  Seeds  Treated  with  Sulphuric  Acid  and  Sown  on  March  31st. 
Germination 
Number 
Percentage 
4-24 
5-1 
5-8 
5-15 
5-22 
4-24 
s-i 
5-8 
s-15 
5-22 
Ai  
I 
7 
26 
29 
32 
1.66 
11.6 
43-3 
48.3 
53-3 
A2  
9 
22s 
35 
35 
35 
15.0 
36.6 
58.3 
58.3 
58.3 
A3  
2 
3 
3 
3 
3 
3-3 
5-0 
5-0 
5-0 
5-0 
A4  
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
Total .  . 
12 
33 
65 
68 
70 
5i- 
17,8 
27.1 
28.3 
29.2 
Bi  
0 
4 
24 
26 
29 
0 
6.6 
40.1 
43-3 
48.3 
B2  
11 
34 
34 
34 
1.66 
18.3 
56.6 
56.9 
56.6 
B3  
5 
14 
30 
30 
30 
8-3 
23-3 
50- 
50. 
50. 
B4  
0 
2 
3 
3 
3 
0 
3-3 
5- 
5- 
5- 
Total .  . 
6 
3i 
9i 
93 
96 
2-5 
13- 
37-9 
38.7 
40. 
Ci  
0 
2 
26 
34 
39 
0 
3-3 
43-3 
56.6 
65. 
c2  
0 
9 
37 
38 
41 
0 
15- 
61.6 
63-3 
68.3 
c3  
0 
5 
26 
3i 
3i 
0 
8-3 
43-3 
51-6 
51-6 
c4  
0 
2 
19 
23 
24 
0 
3-3 
31.6 
38.3 
40. 
Total .  . 
0 
18 
108 
126 
135 
0 
7-5 
45 
52.5 
56.2 
Dx  
0 
4 
26 
26 
26 
0 
6.6 
43-3 
48.3 
48.3 
D2  
0 
4 
25 
28 
28 
0 
6.6 
41.6 
46.6 
46.6 
D3  
0 
6 
34 
36 
36 
0 
10. 
56.6 
60. 
60. 
D4  
0 
7 
25 
25 
26 
0 
n,6 
41.6 
41.6 
48.3 
Total .  . 
0 
21 
1 10 
115 
116 
0 
8-75 
45-8 
47-9 
48.3 
