1903.] STONEY—-UNIVERSE OF REAL EXISTENCES. For 
a part of those conditions in the autic universe which determine 
whether auta can act upon auta. So much I know, because I have 
to adapt my organs of sense to them in order to get tekmeria; and 
it is in doing this that I experience the complicated sensations 
which have come, by reason of what has occurred in my long series 
of ancestors, to be synthetized for me into instinctive judgments of 
objective space relations between perceptions. It is evident then 
that my judgments about space relations are the result of a synthesis 
of materials which are themselves consequences of relations that 
prevail in the autic sense-compelling universe. It is these onto- 
relations, whatever they are, that have an autic [existence]: the 
space relations have only an objective [existence |’. This means 
that we are to treat these space relations as though they existed 
whenever we are availing ourselves of the great and most useful 
objective hypothes?s, which supposes that not only do our percep- 
tions exist but that the hinterland also exists which with them make 
_. up what are called the natural objects about us. But while making 
Ber 
every possible use of this hypothesis, we ought, if we care to think 
clearly, to keep steadily before our minds that this is a hypothesis 
to be made use of, but not the correct theory Zo be believed. 
CHAPTER 14. OF MorTIoNn. 
We are now in a position to deal with the important subject of 
motion. The apfsearance of motion is an auto, a perception in my 
mind; and while this perception lasts it is a tekmerion, a proof to 
me that an event capable of producing this appearance has occurred 
in the sense-compelling autic universe. This event could send dif- 
ferent tekmeria to me, according to the way I employ my senses 
upon it; and the syntheton formed by putting all these together is 
what is meant by the term motion. It is accordingly a part of the 
great objective Hypotheton which we call Nature. If we want to 
indicate the real occurrence in the sense-compelling universe, we 
may speak of it as the onto-motion or aitio-motion, meaning by 
these terms the autic event which corresponds to the syntheto- 
motion in the objective world. Itis an antitheton, and the syntheto- 
motion is the corresponding protheton. The word motion, like all 
similar terms, is ambiguous, and in common speech it has to be 
sometimes interpreted as meaning the protheton in the objective 
world, and in other contexts as meaning its antitheton in the uni- 
