159 (exe. 
anodyne elysters are much used by physicians, but 
the truly medicated injections are not as often em- 
ployed in this as in other countries, particularly 
France. The free operation ofa clyster is attend- 
ed with most of the general effects following lax- 
ative medicines. ‘The impulsive energy given by 
purgatives to the whole system however, can 
never be obtained by even active medicated clys- 
ters, as of aloes, castor oil, colocynth. But for 
this very reason they do not produce the immediate 
prostration often induced by purgatives, and hence 
they may be frequently repeated within afew hours 
er during a day. Every practitioner will ac- 
knowledge the importance of these remedies, either 
as absolute or adventitious curative agents—and 
every practitioner will also confess, that itis much 
easier to know the precise condition of a particu- 
lar patient’s system and disease which may render 
them appropriate with either view, than to point 
out any general rules in the abstract, which may 
suggest their propriety and efficacy in the treat- 
ment of diseases. For this reason [ shall not 
here enter into a discussion of this point, but, in 
the lectures shall endeavour by familiar illustra- 
tion and remarks to say as muchas I am able, to 
lead you to devote as much attention to this class 
of remedies, as its importance demands. With 
these remarks I dismiss the subject, refering you 
for the formulz of proportions and measuremen 
graduated to ages, to the lectures. 
