PHILADELPHIA COLLEGE OF PHARMACY. 151 
macy were added to those already delivered, in which the 
most recent and approved methods of manipulation were 
taught, and the best kinds of apparatus exhibited ; and if 
these were followed by a thorough and detailed application 
of them in the preparation of medicines, in many instances 
repeating the operations before the class, and in all cases ex- 
hibiting the preparation in its most perfect condition, that 
the student would be able to correct the knowledge derived 
at home, and the Pharmacy of the city, so far as the gradu- 
ates of our school are concerned, would be rendered more 
perfect and homogeneous in its character than at present. 
Those who have not given attention to this subject, may 
be disposed to inquire what topics would be presented in a 
course on Pharmacy: we will therefore attempt a sketch of 
the subject coming under that head. 
It is the province of the Professor of Chemistry to explain 
the theory of Caloric and the laws which govern its influ- 
ence on matter in the abstract; it would be the duty of a 
teacher of Pharmacy to show when its influence is required 
in acting on matter destined for medicinal use, hoiv it is 
best applied in effecting the modifications desired, and 
what the means and instruments are by which its power is 
controlled and directed to the end in view. In accomplish- 
ing this task, he would treat of the action of liquids on 
solids, when assisted by different, degrees of heat, as in pre- 
paring infusions, decoctions, &c. : of the distillation of 
fluids, and the necessary apparatus required in its perform- 
ance, explaining in his progress the precautions requisite to 
insure success. The important operation of concentration 
by evaporation, would require his attention to the various 
means of evaporating by steam, water and sand baths, as 
well in vacuo as in the open air ; and its applications in the 
preparation of vegetable extracts, in the crystallization of 
saline solutions, &c, would be numerous and important. 
Again, he would have to illustrate the furnace operations 
called for in Pharmacy, in which the processes of roasting, 
