130 STONEY—UNIVERSE OF REAL EXISTENCES.  [April3, 
forces, we are enabled in each case to indicate with accuracy 
the intensity and direction of the effect, without having to specify (as) 
which of several possible physical causes is the one in operation, or 
(2) which of the possible kinds of effect is that which is being 
produced: and this in practice is found to be an immense con- 
venience. 
Such is an outline of the principles that underlie the dynamical 
investigation of nature, which is the form of investigation that 
penetrates most deeply into its secrets. 
CHAPTER 13. OF SPACE RELATIONS. 
In order to apprehend clearly how much has been accomplished by 
synthesis it is advisable that we should scrutinize more closely space 
relations, and man’s instinctive judgments about them: and as 
these judgments are a more conspicuous factor of my visual and 
tactual perceptions than of others, it will be instructive to treat 
specially of them. 
Many slight muscular and other feeble sensations accompany the 
use of my visual and tactual organs of sense. These obscure sen- 
sations are constantly changing while I am using those senses, and 
in an excessively complicated way. That out of such tangled 
material synthesis has been able to evolve so simple a result as my 
judgment about space relations is because, amid all the appar- 
ent disorder, there do exist [real] relations between those much 
varying sensations ; and the syntheton which can be produced de- 
pends on what these relations are. They in turn depend on what 
relations exist between my [organs of sense] and the various parts 
of the auto which is transmitting messages to me; for it is while 
varying these that the sensations in question arise. Hence, finally, 
the synthesis which can be effected depends on what relations prevail 
in the autic universe between my [organs of sense] and other parts of 
that universe. We have no reason to suppose that these onto-rela- 
tions as they may be called, these relations between auta, are in the 
least Zhe space relations, the space relations being syntheta con- 
structed out of the obscure sensations that are indirectly occasioned 
by the onto-relations, after these have been worked up by the mind 
and its synergos with memories of past experiences and other 
materials. : 
Whatever the onto-relations may actually be, ¢hey are at all events 
