164 FLORA HOMCROPATHICA. 
drugs for this substance, which differs so decidedly from all 
other medicines, by the way in which it modifies the health of 
a person, and the energy with which it acts upon him? How 
can we expect to find a succedaneum for Quinine, that is, to 
meet, among substances differing so greatly from it, with one 
possessing the same virtues? Every species,—animal, vegetable, 
or mineral,—is it not a distinct being or substance that cannot be 
confounded with any other, even in external appearance? Was 
there ever a man so shortsighted as to mistake the Peruvian 
bark for a willow-tree, or an ash for a horse-chestnut ?—trees 
that have so little resemblance to each other. These distinctions 
apply to one sense alone ; how must they be multiplied by using 
all, and still more, when the various substances are tested by 
trying their effects on persons in health ? 
“I acknowledge that substances that have been proposed as 
substitutes for Quinine, from the lofty ash to the humble lichen, 
from arsenic to sal ammoniac, have all suppressed intermittent 
fevers. But observers have stated, in speaking of them, that 
each has frequently succeeded when Quinine has failed, or done 
harm. Is it not clear that these fevers did not resemble each 
other? Had they been homeopathic to Quinine, it would have 
cured them, and no other medicine could have done so. 
It is not only in the bitterness, the astringency, the aroma of 
Quinine, but in its whole substance that the indivisible and 
dynamic property of modifying the state of health resides; in 
regard to which, it differs from every other known medicine. 
Each of the medicinal substances that have been boasted of 
against intermittent fevers, exercise upon mankind, by the laws 
of nature, a special action peculiar to itself. 
The Author of all has appointed that each medicine should 
differ in proportion from all others, that the diversity of modes 
of action should suffice to meet all the symptoms of the innu- 
merable diseases to which mankind is subject. 
If every febrifuge, while it failed in some cases, has really 
cured others, as I grant, in instances where it has been used 
