W. A. Norton on Molecular Physics. 63 
and repulsive, are propagated outward by the surrounding ether, 
from each molecule, and take effect upon other molecules. Here, 
nt 
gin of the molecular forces. The ideas we have thus been le 
to form with regard to the real nature and mode of action of 
these forces, are as follows 
The molecular forces consist of— _ 
A repulsive action of the electric atmosphere of a molecule 
exerted, primarily, upon the electric ether immediately exterior 
to it. This force of repulsion is made up of recurring impulses, 
which are propagated in waves through the cireumambient elee- 
tric ether. These impulses fall upon the electric atmospheres of 
contiguous molecules, are thence propagated down to the surfaces 
of central atoms, and take effect upon these as a force of re- 
ulsion. 
3 2. An attractive action exerted by the central atom of the 
ecules. The electric atmospheres that envelop the 
ies may accordingly be in a perpetual dynamical 
