RESEARCHES  ON  ACONITE. 
445 
These  analyses  were  all  performed  in  the  same  way,  in  similar 
vessels,  and  with  measured  quantities  of  the  reagents  ;  the  same 
quantity  of  each  of  the  reagents  was  treated  like  the  substance 
under  examination,  for  the  avoiding  mistakes,  and  for  comparison. 
The  following  table  gives  the  result  of  the  analyses  : — 
No. 
Date,  1855. 
Weight  in 
ozs.  of  4  cent 
Per  centage  of 
IvEMARKS. 
loaf. 
Dry  bread. 
Ash. 
1 
January 
26, 
10*4 
64-5 
1-29 
Pure  bread. 
2 
27, 
9'  78 
64-25 
1*54 
Salaeratus — magnesia. 
3 
29, 
12-65 
61'8 
0*89 
Salaeratus — magnesia. 
4 
12, 
10*12 
56- 69 
0  79 
Principally  the  crumb. 
Id. 
15. 
9-87 
62  8 
I'll 
No.  4  was  the  bread  used  for  tbe  preliminary 
Id. 
22 
99 
63  5 
1'28 
experiments.    It  was  perfectly  pure  with  the 
Id. 
24, 
9*4 
63.05 
l-05 
exception  of  some  magnesia,  which  I  am  not 
certain,  from  its  c^uantity,  whether  it  was 
Id. 
25, 
9 '9 
632 
1-29 
Id. 
30, 
9  98 
63-0 
1*13 
purposely  added. 
Id. 
February- 
1, 
9*44 
63-4 
122 
Id. 
March  5, 
9*78} 
61-9 
125 
Id. 
o, 
101  j 
5 
Id. 
January  19, 
31, 
11*25 
10*06 
64*95 
64*05 
1-19 
1*37 
|  Alum  found  in  this  bread  in  two  samples. 
6 
February  2. 
«  3. 
8*6 
59-5 
0*89 
Copper  detected. 
7 
8*0 
63-1 
142 
Salaeratus — magnesia. 
8 
5> 
10*47 
63*3 
1-29 
This  was  the  finest  bread  of  the  lot  and  perfectly 
pure. 
9 
6, 
10*91 
05-5 
1-62 
Much  magnesia. 
10 
7, 
10-4 
61  8 
1-26 
Salaeratus — magnesia. 
11 
a 
8, 
11*34 
62*0 
1-36 
Salaeratus. 
12 
9, 
10  35 
63.8 
•08 
Salaeratus. 
13 
a 
10. 
9*8 
63*9 
1-33 
Salaeratus. 
14 
12. 
9*49 
61-1 
136 
Magnesia. 
15 
13j 
11-32 
64*2 
1-39 
Salaeratus — magnesia. 
16 
14, 
15. 
10  49 
63*9 
0*75 
Salaeratus — magnesia. 
17 
10-94 
61*5 
126 
Alum  and  salaeratus. 
18 
16. 
10-64 
63-95 
0*97 
Salaeratus. 
19 
tt 
17, 
11-1 
62-5 
121 
A  little  salaeratus. 
20 
it 
19, 
8*69 
64.45 
1-13 
Salaeratus. 
21 
20, 
10-49 
62*05 
0  89 
Salaeratus. 
22 
<( 
21, 
9*05 
659 
1*19 
Salaeratus. 
23 
22, 
12  43 
63*0 
1*28 
Salaeratus. 
24 
a 
23, 
9-72 
65*1 
0*76 
Salaeratus,  also  magnesia. 
It  will  be  seen,  that  alum  was  detected  in  Nos.  5  and  17,  and 
copper  in  No.  6  Journal  of  the  Franklin  Institute. 
RESEARCHES  ON  ACONITE. 
By  Prof.  Scroff,  (of  Vienna.) 
Prof.  Scroff  arrives  at  the  following  results,  viz : — 
1st.  All  the  varieties  of  aconite  having  a  blue  flower,  may  be 
reduced  to  two  principal  species,  viz:  Aconitum  napellus,  Lin.,  and 
Aconitum  vari^gatum,  Lam.,  which  comprises  Aconitum  camarum. 
2d.  The  plants  belonging  to  Aconitum  napellus  and  its  sub- 
species are  much  more  active  in  all  parts  than  those  which  are 
