802 
THE PHARMACEUTICAL JOURNAL AND TRANSACTIONS; 
[April 6,1872. 
according to the method I have suggested, as fol¬ 
lows :— 
Salt, grains ) (1 part. 
Water, 2 ounces J 1 (100 fluid parts. 
The third would be 87| grains to a pint, or 1 to 
100. Liquor Arsenici Hydrocliloricus, Liquor Mor¬ 
phine Acetatis, Liquor Morphine Hydrocliloratis, and 
Liquor Strychnine contain a certain amount of acid, 
and three of these are partly spirituous. Liquor 
Morphine Acetatis may he taken as an example:— 
Acetate morphia, 8f grs. 
Dil. acetic acid, 10 mins. 
Rectified spirit, ^ fl. oz. 
Water, a sufficiency to 
make 2 fl. oz. 
T part. 
2 fl. parts, 
i or / 25 fl. parts. 
A sufficiency to 
v make 100 fl. pts. 
Liquor Arsenicalis would be written:— 
Arsenious acid, 87^ grs.' 
Carb. of potash, 87-| grs. 
Comp, tinct. of lavender, 
5fl. drs. 6| mins. i 
Water, a sufficiency to } 
make 1 pint. ) 
'5 parts. 
5 parts. 
or ( 
16 fluid parts. 
A sufficiency to 
(make 500 fl. pts. 
Liquor Hydrargyri Perchloridi and Liquor Litliine 
Effervescens, also Peppermint and Spearmint waters, 
might, in the same way, he made to contain 1 
part in 1000 fluid parts. The ointments of the three 
alkaloids, aconitia, atropia, and veratria, which at 
present are in the proportion of 8 grains to the ounce, 
might he made 1 part to 50, or 8f grains to the 
ounce.' 
In like manner most of the wines might he made 
to have decimal or centesimal proportions without 
-departing, to any material degree, from the present 
strengths. Thus, Vinum Ferri Citratis would be 2 
parts in 100 fluid parts, or 175 grains to the pint; 
Vinum Antimoniale 1 part in 200, or 43f grains to the 
pint; Vinum Opii would be written:— 
Extract of opium, 1 ozA /5 parts. 
Cinnamon, , ) 
Cloves, of each, 87| grs. ( or "il part. 
Sherry, 1 pint / (lOO fl. parts. 
Compound Decoction of Aloes would become cen¬ 
tesimal by very slightly augmenting the proportion 
of extract:— 
Extract of aloes, 175 grs. 
Myrrh and Saffron, each 
131£ grs. 
Carb. potash, 87^ grs. 
Ext. liquor., 1 oz. 175 grs. 
Comp, tinct. of carda¬ 
moms, 10 oz. 
Water, a sufficiency to 
make 40 fl. oz. 
\ 
or 
'2 parts. 
1^ part. 
1 part. 
' 7 parts. 
50 fluid parts. 
A sufficiency to 
v make 200 fl. pts. 
Among the infusions, tinctures and ointments, 
however, there are a number of cases where the 
grain occurs in conjunction with the ounce, in which 
it would be unsafe at present to do more than obtain 
a simple relation of parts. 
An examination of these processes as they at 
present stand will show that, in the majority of 
instances, the number of grains mentioned is 60 or 
30. In order to convert these into proportional 
formulae, it is necessary either to augment the 60 
grains to 624, which is the seventh part of an ounce, 
or reduce them to 54f grains, which is the eighth part 
of an ounce. In like manner, where 30 grains are 
now indicated, the number must be increased to 
31^ grains, the fourteenth, or diminished, to 27£ 
grains, the sixteenth part of an ounce. When the 
fluid drachm occurs in the same formula, it is gene- 
rail}^ necessary to employ the eighth and the 
sixteenth ; hut in other cases it is more convenient 
to take the seventh and the fourteenth parts. The 
latter method adapts itself to the compound infusions 
of orange-peel and of gentian, the infusions of 
catechu, linseed, quassia, and senna, to the compound 
iron mixture, and 12 of the ointments, as the follow¬ 
ing examples will illustrate :— 
Infusion of Quassia. 
Quassia chips, 624 grs. 7 Cl part. 
Water, 10 oz. ‘ j or [w parts. 
Compound Infusion of Orange. 
Orange-peel, | oz. \ ( 7 parts. 
Lemon-peel, 624 grs. (, J 4 parts. 
Cloves, 31£ grs. ( 01 j 2 parts. 
Water, 10 oz. ) V280 parts. 
Infusion of Catechu* 
Catechu, 156^ grs. C 10 parts. 
Cinnamon, 3l£ grs. > or < 2 parts. 
Water, 10 oz. J (^280 parts. 
Compound Iron Mixture. 
Sulphate of iron, 26 grs. 
Carbonate potash, 31^ grs. 
Myrrh 
Sugar, of each, 62| grs. 
Spirit of nutmeg, 4 fl. drs. 
Rose water, a sufficiency 
to make 10 fl. oz. 
Among the ointments, there are at present four 
which are 62 grains, one which is 64 grains, one which 
is 62 grains, and two which are 60 grains to the ounce. 
These might he all made 624 grains to the ounce, or 1 
part to 7 parts. In like manner, there are two which 
are 32 grains and two which are 30 grains to the 
ounce; these would become 314 grains to the ounce, 
or 1 to 14. There are also four ointments of 80 
grains to the ounce; these might be made 874 grains 
to the ounce, or 1 part to 5 parts. 
The formuke in which the 60 grains will be best 
reduced to the eighth part of an ounce include Lini- 
mentum Sinapis Co., Mist. Gentiame, Tr. Benzoini 
Co., Tr. Camphorae Co., Tr. Cardamomi Co., Tr. 
Cinclionae Co., Tr. Lavandulae Co., and Vapor Coniae. 
The following will serve to indicate the manner in 
which I would propose to represent these:— 
parts. 
3 parts. 
) or ( 6 parts. 
21 fl. parts. 
A sufficiency to 
make 420 fl. nts 
Tinctura Cinchonae Co. 
Rale bark, 2 oz. 
Orange-peel, 1 oz. 
Serpentary, 4 oz. 
Saffron, 54£ grs. 
Cochineal, 274 grs. 
Proof spirit, 1 pint 
( 32 parts. 
16 parts. 
8 parts. 
4 parts. 
2 parts, 
v 320 fl. parts. 
Tinctura Campliorae Co. 
Opium, 41 grs. 
Benzoic acid, 41 grs. 
Camphor, 274 grs. 
Oil of anise, \ fl. dr. 
Proof spirit, 1 pint. 
/ 14 part. 
14 part, 
or 1 part, 
j 1 fluid part. 
( 320 fluid parts. 
