of  the  Ashes  of  Plants.  513 
Composition  in  100  parts  of  Cow-Cabbage : — 
Cabbage. 
Stalk. 
Silica 
1-66 
1-04 
Phosphoric  Acid 
12-53 
19-57 
Sulphuric  Acid  . . 
7-27 
11-11 
Carbonic  Acid  ... 
16-68 
6-33 
Lime 
15-01 
10-61 
Magnesia  .... 
2-39 
3-85 
Peroxide  of  Iron  . . 
•77 
•41 
Potash  ..... 
40-86 
40-93 
Soda 
2-43 
4-05 
Chloride  of  Potassium  . 
none. 
. « 
Chloride  of  Sodium  . 
traces. 
2-08 
Total  . 
99-99 
99-98 
The  total  sulphur  in  1000  grains  of  undried  cabbage  is  ‘63. 
The  principal  differences  between  the  stalk  and  the  main  body 
of  the  plant  consist  in  the  much  larger  per  centage  of  ash  in  the 
former,  and  the  greater  quantity  of  phosphoric  acid  contained  in 
the  ash. 
Rape. 
The  following  specimen  of  green  rape  was  grown  upon  good 
wheat  land,  being  sown  in  the  beginning  of  July.  When  ana- 
lyzed it  was  about  15  inches  high. 
Water,  Ash,  and  Sulphur  in  Green  Rape : — 
Water 86-96 
Ash 1-30 
Do.  calculated  on  dry  substance  . . 9-98 
Sulphur  on  1000  grains  undried  . . 1.03 
Composition  of  100  parts  of  Green  Rape  : — 
Silica  .... 
6-28 
Phosphoric  Acid 
6-85 
Sulphuric  Acid 
15-91 
Carbonic  Acid  . 
10-96 
Lime  .... 
Magnesia  . 
2-48 
Peroxide  of  Iron 
1-58 
Potash 
26-00 
Soda 

Chloride  of  Potassium 
8-91 
Chloride  of  Sodium 
11-02 
Total  . 
. 
. 
m 
99-95 
Gorse. 
The  green  cuttings  of  Gorse  give  on  analysis  the  following 
results  : — 
Per  centage  of  Water  and  Ash  in  Gorse  : — • 
Water 40-58 
Ash , 2-15 
Do.  calculated  on  dry  substance  . 3-62 
