ALL PHENOMENA COMPOSITE. 65 



existences that Space and Time contain. Space is the 

 abstract of all relations of co-existence. Time is the 

 abstract of all relations of sequence. And dealing as 

 they do entirely with relations of co-existence and 

 sequence, in their general or special forms, Logic and 

 Mathematics form a class of the Sciences more widely 

 unlike the rest, than any of the rest can be from one 

 another. 



The Sciences which deal with existences themselves, 

 instead of the blank forms in which existences are pre 

 sented to us, admit of a sub-division less profound than 

 the division above made, but more profound than any 

 of the divisions among the Sciences individually con 

 sidered. They fall into two classes, having quite dif 

 ferent aspects, aims, and methods. Every phenomenon 

 is more or less composite is a manifestation of force 

 under several distinct modes. Hence result two ob 

 jects of inquiry. We may study the component modes 

 of force separately ; or we may study them in their 

 relations, as co-operative factors in this composite phe 

 nomenon. On the one hand, neglecting all the inci 

 dents of particular cases, we may aim to educe the 

 laws of each mode of force, when it is unintcrfered 

 with. On the other hand, the incidents of the parti 

 cular case being given, we may seek to interpret the 

 entire phenomenon, as a product of the several forces 

 simultaneously in action. The truths reached through 

 the first kind of inquiry, though concrete inasmuch as 

 they have actual existences for their subject-matters. 



