NEW PREPARATION OF CINCHONA BARK. 51 
formula in which the least chemical action takes place 
between the tannin and the iron, as no discoloration ap- 
pears for several days :— 
Precipitated carbonate of iron, syrup of bark, of each an 
ounce. Mix. Dose, the size of a small nutmeg. 
The strength of this syrup is such, that one drachm is a 
full dose, either by itself or in water. Aromatics, such as 
anise or fennel, are said perfectly to mask the bitterness of 
of preparations of quinina. M. Pierquin says, that thirty- 
two grains of carbonate of magnesia conceal the taste of 
six grains of sulphate of quinina, without interfering in its 
virtues. 
To conclude : this preparation of bark seems deserving 
of the attentive consideration of physicians, as it contains 
all that is valuable in that medicine, in a state of perfect 
preservation and full energy. It presents the active ingre- 
dients exactly in their natural state, which good judges have 
declared to be in many forms of disease absolutely neces- 
sary. It contains nothing but what is an unaltered proxi- 
mate principle of bark. The form is commodious, not lia- 
ble to spoiling, is less disagreeable than any other, and may 
be rendered even agreeable.— Ibid, 
