216 
THE PHARMACEUTICAL JOURNAL AND TRANSACTIONS. 
[September 14, 1872. 
No. 
90 
91 
92 
93 
94 
95 
96 
97 
98 
99 
100 
101 
102 
103 
104 
105 
106 
107 
108 
109 
110 
111 
112 
113 
114 
115 
116 
117 
118 
119 
120 
121 
122 
123 
124 
125 
126 
127 
128 
129 
130 
131 
132 
133 
134 
135 
136 
137 
ft 
1 
o 
ft 
J < x > 
o 
Name. 
O 
o § 
> s 
-3 
-w 
a; 
W-H 
u . 
ft q.) 
c?3 ni 
P £ 
- *>! 
1 
m bo 
1 
Jr* a 
o- 
Tinct. Pyrethri 
p 
87-50 
| 
•838 
» 
11 
s 
87-50 
I -838 ; 
)) 
Quassise 
M 
16-40 
•920 
1 ** 
Rhei 
S 
16-40 
•920 
» 
M 
60-15 
•920 
ft 
11 
P 
60-15 
•920 
” 
11 
S 
60-15 
•920 
n 
Sabinae 
M 
54-68 
•920 
tt 
11 
P 
54-68 
•920 
>t 
11 
S 
54-68 
•920 
>* 
Scillse 
M 
54-68 
•920 
11 
P 
64-68 
•920 
n 
11 
S 
54-68 
•920 
ft 
Senegae 
M 
54-68 
•920 
11 
P 
54-68 
•920 
ii 
11 
S 
54-68 
•920 
51 
Sennas 
M 
120-31 
•920 
11 
11 
P 
120-31 
•920 
11 
11 
S 
120-31 
•920 
! ii 
Serpent. 
M 
54-68 
•920 
tt 
11 
P 
54-68 
•920 
ii 
11 
S 
54-68 
*920 
ii 
Stramonii 
M 
54-68 
•920 
11 
P 
54-68 
•920 
ii 
11 
S 
54-68 
•920 
ii 
Sambul 
M 
54-68 
•920 
>» 
11 
P 
54-68 
•920 
ii 
11 
S 
54-68 
•920 
ii 
Valerian 
M 
54-68 
•920 
»» 
11 
P 
54-68 
•920 
ii 
11 
S 
54-68 
•920 
” 
Valer. Co. 
M 
54-68 
•870 
ii 
11 
S 
54-68 
•870 
ii 
Yerat, Virid. 
M 
87-50 
•838 
11 
11 
P 
87-50 
•833 
ii 
ii 
11 
Zingiber. 
S 
M 
87-50 
54-63 
•838 
•838 
” 
11 
P 
54-68 
•838 
ii 
11 
S 
54-68 
•838 
” 
Zingib. fort. 
P 
218-75 
•838 
.ii ii 
Yin. Colehici 
s 
M 
218-75 
87-50 
•838 
•988 ' 
11 
11 
11 
Ipecac. 
S 
M 
87-50 
21-87 
•988 ; 
•988 
11 
11 
Rhei 
S 
M 
21-87 
35-81 
•988 
•988 
11 
11 
15 # 
Xericum 
S 
35-81 
•988 I 
•988 I 
ft 
c 
c3 Z) 
t & 
.C H 
ft 
GO 
Total contents 
per oz. in 
grains. 
Per cent, of in- 
gred. dissolved. 
*8416 
4-77 
5-4 
•8420 
478 
54 
•9276 
1-06 
6-5 
•9277 
1-07 
6-5 
•9390 
26-33 
43-7 
•9392 
28 -86 
47-9 
•9386 
2901 
48-2 
•9890 
12 94 
23-6 
•9391 
12 81 
23-4 
•9896 
12-87 
23-5 
•9518 
43-02 
78-6 
•9571 
48-72 
89-1 
•96S0 
48-80 
89-2 
‘9351 
18-05 
33-0 
•9353 
18 28 
33-3 
"9356 
18-26 
33-3 
•9616 
41-47 
34*4 
•9603 
40-41 
33-5 
•9670 
40-65 
33-7 
•9233 
c-oo 
10-9 
•9239 
6*57 
12-0 
•9241 
6-57 
12-0 
•9317 
2-86 
5-0 
*9318 
2 89 
5-1 
•9318 
2-89 
5-1 
•9246 
16-25 
29-7 
•9248 
16-48 
30-1 
•9243 
15-70 
28-7 
"9205 
5-1 
9-3 
•9215 
6-1 
11-1 
•9250 
6-3 
11-5 
•9000 
5-03 
9-1 
•9064 
6-16 
11-2 
•8524 
11-56 
13-3 
•8527 
1272 
14-5 
•8624 
13-9 
15-8 
*8425 
2-17 
3-9 
•8426 
218 
3-9 
•8428 
2-21 
4-0 
*8530 
9 09 
4-1 
•8533 
9-14 
4-1 
1-0033 
*38 04 
24-1 
i‘0050 
39-10 
25-3 
•9946 
26-16 
42-1 
•9970 
26 95 
45-7 
1-0176 
38.62 
60-5 
1-0212 
41-65 
16-95 
68-9 
greS' 3 auXo“rto Virpaper 6116 ! aU attont!on 
Z Sr’lt P tt enCe 
hear “l £ 
or p™cohTl U31 Y n tllat VKndriod is L bes? form 
1864 P soon aferfb» Wl11 perha P s remember that in 
4, soon aitei the appearance of the first British Phsr 
Mt? f lil00m f bU ^ SquareInapparatu 
v^mcn i nad had made m order to carry out the Phar 
§?£=? 
Vn b P erco ^ a ^ or has rests inside it for fixing a 
diaphragm about one sixth of it* V £ / 
the bottom wv., 0. . ot . lt3 length from 
&» sts rrit zznr^i 1 
l C83el thero 13 no necessity for anoth er vesseU “whfch 
ounce ofhfwTne. illati0n3 “ dude the total «»“<»*» per 
to macerate the ingredients with the spirit first of all,, 
and certainly there is no waste in transferring from one 
vessel to another. I put the ingredients in as Mr. Stod- 
dart directs, and pour upon them the quantity of spirit. 
I allow them to macerate until all the material is well 
acted on by the spirit. I then well stir it up, and 
allow it to settle and pack itself down just as Mr. 
Stoddart has described. After a certain number of 
hours (say 24) I turn on the tap very gently and 
allow the percolation to commence. In that way I 
always get satisfactory preparations. Towards the end 
of the process (perhaps this may be superfluous) before 
I displace the spirit that remains, I take the precaution 
to press the ingredients to pack them down more. My 
cylinder is large enough to admit a couple of 28 lb. 
weights. I cover the ingredients with a metal plate,, 
place one weight on the top of it. After a certain 
time I increase the pressure by putting another weight; 
and when I find that I can get no more droppings- 
by means of these weights I remove them, and place 
over the top a thin piece of blotting-paper which pre¬ 
vents certainly any immediate mixture of water and 
spirit;. and upon that I pour the water. I have sel¬ 
dom failed, I believe, to get a satisfactory preparation. 
There is another precaution which 1 take, when pres¬ 
sure and not displacement finishes the process, and. 
which I mentioned on a former occasion. It was pub¬ 
lished in the Pharmaceutical Journal ; but things 
are forgotten, and, though I am sorry to intrude my¬ 
self upon. you, I find that it is only by doing so again 
and again that it is remembered that the same 
thing has been told previously. The other precau¬ 
tion which I take in order to get all I possibly can 
out of the ingredients, and with as little waste as 
possible, is this :. the Pharmacopoeia permits and directs 
5 ou to add sufficient of the menstruum after pressing to 
make up the quantity originally ordered. Instead of doing 
that, after the work is finished I pass the proper quantity 
through before pressing. I can tell pretty well from 
notes and experience how much will be lost in pre¬ 
paring. one or two gallons, or even a quart. Thus, if 
there is anything left in the marc I have an extra 
chance of getting it. out if I add at once the supposed 
loss. I think that is a little improvement. There are 
several tinctures in the Pharmacopoeia which require- 
particular manipulation. I am not going into all the* 
particulars to-day. . I may mention tincture of senna, 
foi instance, with raisins in it; and compound tincture of 
cardamoms. Tincture of orange-peel also. This re¬ 
quites a little management to get not only a satisfactory 
preparation, but one which is not wasteful; because in 
the ordinary way the orange-peel absorbs a great quan¬ 
tity ot the menstruum, 'and there is a difficulty in 
getting it out. However, I have a paper in hand upon 
tincture or orange-peel, and embracing the question 
v bother it is prepared better from fresh peel or dried. 
tt i* Ravage .: The percolator mentioned by Mr. 
Haselden has its objections. It is a metal percolator, 
am .me a ias an effect upon the tinctures, sometimes- 
turning them much darker. I suggested some time ago 
a percolator whereby you might attain all the objects that 
you desired, and most effectually in any small quantity, 
it was one of Loysell’s percolators by which ordinary 
co ce is made. It is a decided improvement compared 
wi n any; nng.we have. A tube runs down the centre, 
and about two inches from the bottom is a double diaph¬ 
ragm. isetwixt the diaphragms you put your ingredients. 
Un " e s ? rewec l on the top. The menstruum passes 
rough the ingredients, and then repasses again, so that 
,ry? su s cinC(J is always surrounded with the menstruum, 
inusyouget a capital result with very little trouble. 
. lth respect to the observations of Mr. Stoddart, there 
i.-5 one mg which cannot be too strongly impressed on 
my brother pharmacists; that is, with reference to the 
measures. 1 ou will find that in dispensing and or- 
mar) se ling m small quantities, by having the two- 
