PHARMACEUTICAL PREPARATIONS. 
ART. XXXI.-REMARKS ON SOME OF THE PHARMACEUTICAL 
PREPARATIONS. 
By Joseph Laidley. 
{Extracted from an Inaugural Essay.) 
GlycerinOintment as a substitute for Ceratum Cetacei. 
Spermaceti cerate having a proneness to become rancid, 
and unfit for the objects of its employment, and being too 
stiff, Mr.Laidley proposes the following ointment as a substi- 
tute, viz : Take of 
White Wax and Spermaceti, each one ounce and a half. 
Lard, five ounces. 
Glycerin, one fluid ounce. 
Melt together the wax and spermaceti, add the lard, and 
as soon as the whole is liquified, remove the mixture from 
the source of heat ; stir constantly until when on cooling 
they begin to thicken, add the glycerin and incorporate it 
thoroughly with the other ingredients. 
Samples of the above ointment were tried by two of our 
most respectable physicians, who gave it a decided prefer- 
ence over the officinal simple cerate. They thought it much 
more efficacious, milder, of abetter consistence, and altoge- 
ther better adapted to the purposes for which simple cerate 
is used, than that cerate. 
With regard to the glycerin, its healing properties are 
too well known to need comment ; but it should be stated 
that it acts also as a preservative agent, for an ointment, 
made as above, except that oil of almonds was used instead 
of lard, was sweet after having been kept at a moderate 
temperature during seven months. 
Rose Water Ointment. This ointment, popularly known 
as Cold Cream, is a very nice looking article, and when 
freshly prepared, is undoubtedly a very good one; but it 
does not keep well; the consistence being soft, and the rose 
