> 
. 
ba 
THE 
meer NOLMOGIST: 
A RECORD OF SCIENCE. 
NOVEMBER, 1866. 
—  )——— 
ON OZONE AND ITS RELATIONS TO 
ANIMAL CHARCOAL. 
BY T. W. TOBIN. 
HERE are three forces necessarily called into action 
in a simple chemical combination of two elementary 
bodies, and the formation of the resulting compound—. 
first, a force by which each of the primary substances 
undergoes a decomposition or destruction of its constitu- 
tion ; secondly, an attractive force, a mutual affinity between 
the respective elements; and thirdly, a new force is created, 
effecting the structure of the resulting compound. The 
absence of, or interference with, either of the two former 
conditions prevents or modifies the reaction, and the chief 
governing principle in most instances of combinations is 
the inertia offered by one or both of the primary bodies to 
the decomposition of form. The presence of a third neutral 
body sometimes greatly modifies the behaviour of the two 
active elements, although not in itself suffering any change 
of constitution—a property remarkable in itself as proving 
exceptionable to the doctrine of chemical affinity. The 
action, moreover, is inexhaustible and continuous, it is in 
proportion with the quantity of the substance. 
This peculiar action has been named “ catalysts,” but to 
accurately define the extent of the term would be proceed- 
ing on doubtful ground. Numerous instances abound in. 
NEW SERIES.—VOL. I. FE 
