68 KANSAS CITY REVIEW OF SCIENCE. 
silent grave to give back the beloved form that it has just folded to its bosom. 
The wand of a fell spectral magician is upon them. They see, but do not per- 
ceive. They hear, but do not understand. They are sick, and miserable, and 
blind, and naked, and yet insist that they are in health, enjoying luxury and 
pleasure. 
What is wrong, and wherein does the diseased process lie? In what does 
the morbid condition of the moral nature consist ? Man is at least a dual being, 
physical and moral. 
Of the physical we know much, principally because of its very nature we 
are capable to taking cognizance of it by our physical senses. Breaking of phys- 
ical law is at once followed by tangible results — either producing physical suffer- 
ing or even somatic death. We see it acted upon by the very same laws that are 
acting on all organized matter. It begins to live — so does a tree or a blade of 
grass. It reaches an equihbrium of existence and reproduces its kind, and so 
do all forms of animate nature. It declines just as a plant does, and dying, like 
the plant, returns to its original dust. 
We know something of the laws that govern it. We study them in every 
avenue of scientific investigation. But the laws that govern our moral being are 
not so known or understood. They have never been studied or formulated. No 
laws are laid down for the maintenance of its health or general well-being, in any 
text-book, or system of science, and we are yet groping in the dark. Knowing 
we have a moral nature we are still in the dark as to the laws of its existence. 
But is it really true that we know no laws that govern it? Are they different 
entirely from those that govern our physical nature, or are they not all under the 
same great general laws, each nature having some special and differentiating law, 
where the natures are entirely differentiated ? 
In our physical organism we know of and describe a great many processes 
that occasionally go on in the economy, and which, being allowed to continue, 
finally culminate in death. We call them disease. It may be erysipelas in the 
hand for instance. We say the man is sick — not the hand — for the organism is a 
unit, and all suffers, though the manifestation is only in one hand. Or the lung 
is inflamed, and the whole economy suffers, not because the whole economy is 
diseased, but because the organism is a unit, and one portion or part failing puts 
all other parts out of harmony — breaks the fine adjustment of the chord in the 
grand anthem of existence. We have said the whole economy is sick though 
only one organ is diseased. Why is this ? The food that feeds the one hand 
feeds also the other. The food that is supplied to the lung, if not the same, is 
drawn from the same great fountain that also supplies the brain. But that fount- 
ain of supply is also the receptacle for waste from the whole economy, and when 
a tissue or organ is diseased, its worn-out (and diseased) particles going back by 
nature's systematic carriers, pour the waste in the common reservoir and so pollutes 
the whole mass. Almost every diseased process illustrates the truth of this. 
Now a medicine is an agent that when taken into this circulating current has 
the power of changing the nutritive quahties of the fountain of food. It may be, 
