490  The  Germination  of  Belladonna  Seed.  { ^oveSr^S5" 
general  lot  used  in  testing  the  method  of  separation.  Table  VI  shows 
the  weight  of  500  of  the  light  and  the  heavy  seeds  from  the  five 
individual  plants. 
Table  VI. 
Weight  of  500  Each  of  Light  and  Heavy  Seeds  from  Individual  Plants. 
Description 
Weight  (Gms.) 
No.  15 
No.  47 
No.  41 
No.  nw 
No.  14 
Light  
Heavy  
O.4606 
0.5I05 
O.4IOI 
O.461 1 
0-4757 
O.5288 
O.5161 
O.561O 
O.4409 
O.4646 
To  test  the  relative  germinating  power  of  the  light  and  heavy 
seeds,  fifty  of  each  were  sown  in  five  different  pots,  one  for  each 
of  four  individual  plants.  Table  VII  shows  the  germination  at 
various  stages. 
Table  VII. 
Relative  Germination  of  Light  and  Heavy  Seeds  from  Four  Individual  Plants.  Seeds 
Sown  April  13th. 
Number 
of  plant 
Description 
of  seed 
Germination 
Num 
ber 
Per  cent. 
May  8 
May  15 
May  22 
May  29 
May  8 
May  15 
May  22 
May  29 
47  { 
Light 
3 
7 
7 
8 
6 
14 
14 
16 
Heavy 
19 
24 
24 
24 
38 
48 
48 
48 
4i  | 
Light 
3 
5 
5 
5 
6 
10 
10 
10 
Heavy 
3 
8 
12 
14 
6 
16 
24 
28 
IIW  | 
Light 
4 
5 
5 
6 
8 
10 
10 
12 
Heavy 
9 
21 
24 
26 
18 
42 
48 
52 
-  { 
Light 
0 
1 
I 
0 
2 
2 
2 
Heavy 
27 
3i 
32 
32 
54 
62 
64 
64 
The  results  show  conclusively  that  the  light  seed  is  mostly  dead, 
only  a  small  percentage  of  it  germinating.  Figure  3  shows  graphi- 
cally the  progressive  germination  in  each  case. 
Relation  of  Color  of  the  Seed  to  the  Germination. 
Belladonna  seeds  are  either  of  a  rich  brown  or  silver  gray  color. 
That  a  relationship  might  exist  between  color  and  weight  was  con- 
