| the collision of bodies sueh’‘m 
‘ 
28 W. A. Norton on Molecular and Cosmical Physics. 
cosmical force within the space that it would occupy, would de- 
velop, as above explained, an inward acting force that might be 
in equilibrio with the augmented mutual repulsion of the atoms 
of the condensed ether. If this conception be adopted, the in- 
terception of the cosmical force, effected by an atom of ordinary - 
matter, will take place at each of the ethereal atoms of which it 
is composed, and the entire effect will be proportional to the 
number of such atoms, or the entire mass of the compound 
atom. If then a second such atom of ordinary matter (B) be 
considered, at a distance from the first (A), the effective gravita- 
ting tendency of each of its constituent ethereal atoms toward 
A will be proportional to the mass of A. ‘The entire gravitat- 
ing tendency of B toward A, will then be cae to the 
mass of A multiplied into the mass of B. Also, since the tend- 
ency of each ethereal atom of B toward any ethe 
A is inversely proportional to the square of the distance, the 
same law wi hold for the entire gravitating tendency of B 
toward A. It is to be borne in mind that the effective force of 
gravitation here considered, is the excess of the gravitating 
tendency due to the partial interception of the general cosmi- 
eal force by the atom A and its ethereo-electric atmosphere, over 
the repulsion directly exerted by the same. 
The Newtonian principle of gravitation being thus made 
out for individual atoms of ordinary matter, it is also made out 
. The Newtonian laws of the mutual 
sequences of the ee of gravitation as now deduced from 
a force called the attraction of cohesion, and one or more forces 
of mutual Bee pest The force of heat is recognized as one 
ways augmented in rapidity by waves of radiant heat from 
atever direction received, it is wholly inconce 
eivable that in 
