DISTRIBUTION  OF  NITROGENATED  COMPOUNDS,  ETC.  325 
Eyoscyamus  niger,  1868.     1.  Percentage  of  Alkaloid. 
Before  flowering 
Flowering  plants 
Fruit  bearing  plants 
(end  of  May.) 
(end  of  June.) 
(end  ot  August,  September.) 
Leaves, 
0-208 
0-188 
0-151 
0-216 
0  224 
0-158 
0-147 
0-173 
0-012 
0  055 
0-0G5 
0-069 
0-012 
Stems, 
0-075 
0-081 
0-070 
0-OSO 
0-04G 
0-030 
0  082 
0-034 
0-003 
0-004 
0-009 
0-008 
Roots, 
0-057 
0-032 
0-027 
0-052 
0-204 
0-193 
0-127 
0134 
0-052 
0-049 
0-028 
0-057 
Fruits  with 
Seed, 
0-066 
0-086 
0-075 
0  101 
Seeds, 
0-163 
0-106 
2.  Percentage  of  Nitrate  of  Potassa. 
Leaves, 
Stems, 
Roots, 
Fruits  with 
Seeds, 
Seeds, 
2-082 
0-383 
0-248 
1-328 
0-198 
0-106 
1-221 
0162 
0-107 
1-361 
0-171 
0-211 
1-692 
0-101 
0-119 
1-120 
0-182 
0-170 
1-015 
0-149 
0-192 
1-200 
0-154 
0-206 
0-275 
0-011 
0-050 
0-056 
0-009 
0-042 
0-639  0-864 
0-044  0-069 
0-024  0-073 
0-194 
0  076 
The  following  table  exhibits  the  quantitative  results  of  the 
dry  material  grown  in  1869  ;  the  column  of  May  6th  refers  to 
the  cotyledons  of  the  sprouting  plant ;  that  of  May  28th  to  young 
plants,  three  weeks  old. 
Hyoscyamus  Albus. 
Hyoscyamus  Niger. 
May 
6. 
M-iy 
28. 
June 
15. 
July 
20. 
Sept. 
11. 
May 
9. 
June 
2. 
July 
6. 
Sept. 
2. 
Leaves,"] 
Stems, 
Roots,  1 
Seeds,  J 
Alkaloid. 
0-4506 
0-4102 
0-4694 
01764 
0-3292 
0-0480 
0-2625 
0-1533 
0-0:i91 
0-0859 
0  1727 
0-4989 
0-0808 
0-1927 
0-0174 
0-0199 
0-20611 
0-0302 
0-1379 
0-1107 
0-0105 
0-0559 
0.1187 
Leaves," 
Stems,  , 
Roots, 
Seeds,  , 
Nitrate 
Potassa. 
0-3871 
0-7234 
1-2726 
0-1235 
1-0599 
0  0711 
0-0500 
0-9059 
0-0487 
0-1152 
0-0688 
1-3850 
0-1084 
1-4268 
0-0910 
0-1155 
0-9914 
0-1844 
0-2425 
0-820fi 
0-0571 
0-0351 
0-0371 
Leaves," 
Stems, 
Roots, 
Seeds,  ^ 
■  Ammonia. 
00771 
0-1813 
0-2568 
0-1127 
0-5702 
0-1386 
0-3869 
0-806" 
0-1193 
0-1617 
0-1017 
0-3171 
0-1546 
0-7305 
0-1605 
0-1540 
0-7435 
0-1814 
0-4240 
0-7669 
0-1038 
0-1471 
0-2613 
Leaves, 
Stems, 
Roots, 
Seeds, 
'  Albuminates. 
28-86 
28-05 
19-40 
24-33 
16-59 
10-97 
26-66 
8  99 
9-10 
12-34 
10-43 
28-11 
25-99 
17-63 
6-50 
19-13 
16-71 
9-97 
1938 
1031 
8-99 
13-82 
10-46 
The  decrease  and  increase  of  the  nitrogenatcd  constituents 
appears  to  occur  in  the  plant  with  a  certain  uniformity.  The 
