SCIENTIFIC FAITH ONCE MORE 
ent orders in which the atoms are arranged in the 
molecule, and the molecules in the mass. If the 
atoms of carbon or oxygen or hydrogen are each as 
unique and individual as men and women are, one 
can see that the order in which they join hands or 
select their partners may be fraught with important 
consequences. Or if the atoms are vibrating each 
with a different degree of energy, or carry different 
charges of electricity, then one can see that the dif- 
ferent orders in which they stand to each other would 
be significant. But no mechanical image, nor the 
action and interaction of ponderable bodies in time 
and space, afford us a key to chemical combination. 
How can we figure to ourselves any sort of spatial 
disposition of the ultimate particles of the invisible 
gases of oxygen and hydrogen that shall result in a 
product so unlike either as water? How impossible 
it all is in the light of our experience with visible 
bodies! Each atom or electron seems to get inside 
the other. But how can an indivisible particle of 
matter have either an inside or an outside, or place, 
or weight, or any other property that we ascribe to 
the bodies that we see and feel? What a world of 
the imagination it all is! It introduces us to some of 
the unthinkable truths of science — truths beyond 
our power to grasp, yet which experimental science 
verifies. It is unthinkable that matter and motion 
can exist without friction; that two bodies can occu- 
py the same space at the same time; that a particle 
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