CINCHONA OFFICINALIS. 161 
“Tt is therefore necessary for medical mento study effects 
upon healthy persons, and see the changes produced upon 
them, before they attempt to cure disease and debility by an 
agent so exceedingly powerful. They should acquaint them- 
selves with the various forms of Quinine disease, before they 
can determine in what cases it is the fitting remedy ; for it is 
only such as resemble its own entire symptoms, that can be 
cured by it. In not following this rule, we stray from the right 
road, and do more harm than good. 
“ But when we make a conscientious investigation, and do not 
allow ourselves to be guided by theories, by deceptive names of 
diseases, and uncertain authorities, when we find this substance 
to be the true remedy, that which is really and perfectly 
adapted to the case in question, then Quinine imparts true 
strength. It fortifies, because it cures; for it is only a frame 
freed from disease that can regain its powers ; they cannot be 
infused into it by decoctions of wine and bark. 
“Under some circumstances, debility is the disease itself, 
then Quinine gives real strength, because it heals. This hap- 
pens when the affection depends upon causes of exhaustion. 
Then almost all the other symptoms coincide with China ; in 
another case, if no other disease exists increasing that loss of 
the humours, etc., this debility, becoming a disease, yields to one 
or two weak doses, provided one is careful at the same time to 
enforce upon the patient a suitable way of living, nourishing 
regimen, pure air, amusement, etc. ‘Then small doses are as 
beneficial as large ones, repeatedly taken, are prejudicial. 
“ The well-known value of Quinine in cases of weakness 
caused by the abundant loss of various humours, has tended to 
put medical practitioners upon a system most universally 
adopted. 
“This method consists in creating weakness, by the abstraction 
of humours, under the idea of causing the offending matter to 
be more easily expelled. When such treatment, especially that 
based upon aperients, has continued some time, not only the 
