150 THE DATA OF PHILOSOPHY. 



remain inseparable. So, too, is it with co-existing groups 

 of manifestations: each persists as a special combination; 

 and most of them preserve unchanging relations with 

 those around. Such of them as do not such of them as 

 are capable of what we call independent movements, never- 

 theless show us a constant connexion between certain of 

 the manifestations they include, along with a variable con- 

 nexion of others. And though after certain vivid mani- 

 festations known as a change in the conditions of percep- 

 tion, there is a change in the proportions among the vivid 

 manifestations constituting any group, their cohesion con- 

 tinues we do not succeed in detaching one or more of 

 them from the rest. Turning to the faint mani- 



festations, we see that while there are lateral cohesions 

 among them, these are much less extensive, and in most 

 cases are by no means so rigorous. After closing my eyes, 

 I can represent an object now standing in a certain place, 

 as standing in some other place, or as absent. While I 

 look at a blue vase, I cannot separate the vivid manifes- 

 tation of blueness from the vivid manifestation of a 

 particular shape ; but, in the absence of these vivid manifes- 

 tations, I can separate the faint manifestation of the shape 

 from the faint manifestation of blueness, and replace the 

 last by a faint manifestation of redness. It is so through- 

 out: the faint manifestations cling together to a certain ex- 

 tent, but nevertheless most of them may be re-arranged with 

 facility. Indeed none of the individual faint manifesta- 

 tions cohere in the same indissoluble way as do the individ- 

 ual vivid manifestations. Though along with a faint mani- 

 festation of pressure there is always some faint manifesta- 

 tion of extension, yet no particular faint manifestation of ex- 

 tension is bound up with a particular faint manifestation 

 of pressure. So that whereas in the vivid order the 



individual manifestations cohere indissolubly, usually in 

 large groups, in the faint order the individual manifesta- 

 tions none of them cohere indissolubly, and are most of 



