492 
The  Germination  of  Belladonna  Seed.    {  ^Vembe/iSi"' 
sidered  probable,  and  for  that  reason  the  lots  of  500  seeds  each  used 
to  determine  the  relative  weights  of  light  and  heavy  seeds  as  given 
in  Table  VI  were  separated  into  the  brown  and  gray,  with  the 
following  result : 
Table  VIII. 
Relative  Number  of  Brown  and  Gray  Seed  A  mong  the  Light  and  Heavy  Seed  from 
Five  Individual  Plants. 
Light 
Heavy 
Number 
of 
Brown 
Gray 
Brown 
Gray 
plant 
Number 
Per  cent. 
Number 
Per  cent. 
Number 
Per  cent. 
Number 
Per  cent. 
15 
37 
7-4 
463 
92.6 
387 
77-4 
113 
22.6 
47 
397 
794 
IO3 
20.6 
471 
94.2 
29 
5-8 
4i 
86 
17.2 
414 
82.8 
39 
7.8 
461 
92.2 
14 
460 
92.0 
40 
8.0 
500 
100 
0 
0.0 
IIW 
65 
13.0 
435 
87.0 
241 
48.2 
259 
51.8 
Average 
209 
41.8 
291 
58.2 
328 
65.6 
172 
34-4 
Evidently  there  is  no  definite  relation  between  color  and  weight, 
as  the  results  show  a  great  variation.  According  to  the  average,  it 
appears  that  the  heavy  seeds  contain  a  noticeably  larger  percentage 
of  brown  ones  than  the  light  seeds.  From  this  one  would  judge  that 
the  brown  seeds  are  of  a  better  quality  and  would  show  a  greater 
percentage  of  germination.  To  determinate  whether  such  is  the 
case,  100  seeds  of  the  two  colors  were  sown  in  pots  on  April  13th, 
with  the  result  as  indicated  in  Table  IX  following. 
Table  IX< 
Relative  Germination  of  Brown  and  Gray  Seeds  Sown  April  ijth. 
Germination 
Description 
May  8 
May  15 
May  22 
May  29 
Per  cent. 
Per  cent. 
Per  cent. 
Per  cent. 
13 
28 
42 
45 
Gray  
28 
42 
53  . 
56 
These  results  are  quite  contrary  to  what  was  expected.  Table 
VIII  shows  that  the  heavy  seed  from  plant  No.  14  contained  no 
grays  whatever,  while  the  light  seed  from  the  same  plant  was  almost 
all  gray.    Reference  to  Figure  3  shows  that  the  heavy  seed  ger- 
