, 
CIN—CIN 
the extem: prescriptions and mixtures of phy- 
ciate, varied actording to circumstances. An cid sal- 
nate of Quina was prepared by Robiquet—it is in solid, 
ransparent prisms, of a flattened triangular form, -well 
ated, and soluble in cold water. It is however the 
e, and not this of Robiquet, in which the acid 
is in excess, that is employed in medicine. 
_ Orrrc. Prer. 2. Acetate of Quina is remarkable for the 
great facility with which it crystallizes, and for the pearly 
t and agreeable stellated grouping of the crystals— 
the acetate of Cinchonia crystallizes with difficul- 
ty, and simply in plates, transparent-and devoid of lustre. ° 
Meprcat Paorerties any Uses. The febrifuge properties 
of Cinchona, “+ pat known and appreciated, are centred 
in this beautiful important preparation, It has gene- 
rally superseded the use of bark, in the former 0 of 
exhibition. Doubtless there are numerous cases, to which 
it is equally well oe as the bark; but I cannot help 
believing, from much experience with bark itself in its 
various forms, and with sulphate of Quina, that there still 
will be met with, cases to which the bark itself is peculi- 
arly applicable; and I do know, that with the latter I have 
succeeded in many cases, in which the new preparation, 
though perfectly pure, was unavailingly tried. 
Upon the whole, I view the sulphate of Quina as an 
invalyable accession to our therapeutic means—but must 
caution you, from much and unbiassed experience, against 
considering it altogether as a substitute which’should re- 
move the bark itself from your view, or preclude it from 
your practice. 
The extensive use of this preparation, however, is a 
evidence of its importance. According to the re- 
port of MM. Pelletier and Caventou to the French Aca- 
__ demy of Medicine, the large quantity of 90,000 ounces of 
_ sulphate of Quina was manufactured, in 1826, in France— 
ag _ a quantity which could not have becn administered to less 
INNAMOMI CORTEX, Cinnamon. See 
