THOUGHTS ON NATURAL PHILOSOPHY. 31 
ADDENDA. 
N.4.—The sense in which the word ‘ vortices” is used is as 
expressing the motions communicated to the surrounding ether 
by the rush and whirl of the stars, planets, atoms, etc., resulting 
in vortical force. 
Cyanogen, this is merely a name for an arrangement of material 
portions, moving at certain speeds, in certain ways; and conse- 
quently having certain characteristics. Never let either simple or 
difficult words blunt your perception of this fundamental truth about 
substances. 
Physicists, Geologists, etc., know that many modifications of 
physical law are brought about by physical law, by the formation 
of cements, by pressures, etc., etc. These have not been mentioned 
in detail. I have given the outline, the filling in and decoration is 
left to abler hands to perform at their inclination and leisure. 
Published by A. BropiecomBr, Newcastle-on-Tyne. 
at 7d. per copy, post free. 
