134 ADVANCEMENT OP LEARNING. [BOOK 111. 



is past, and as it were dead, is mere superstition and im 

 posture. 



Abstract physics may be justly divided into two parts, 

 the doctrine of the schemes of matter, and the doctrine of 

 appetites and motions. The schemes of matter are density, 

 rarity, gravity, levity, heat, cold, tangibility, intangibility, 

 volatile, fixed, determinate, fluid, humid, dry, unctuous, 

 crude, hard, soft, fragile, tensile, porous, united, spirituous, 

 jejune, simple, compound, absolute, imperfectly mixed, fibrous 

 and veiny, simple position, or equable, similar, dissimilar, 

 specificate, unspecificate, organical, inorganical, animate and 

 inanimate ; and farther than this we proceed not. For sen 

 sible and insensible, rational and irrational, we refer to the 

 doctrine of man. 



Appetites and motions are of two kinds, as being either 

 simple motions, wherein the spring of all natural actions is 

 contained, that is, in respect of their schemes of matter; or 

 motions compounded or produced, and with these the com 

 mon philosophy, which enters but little into the body of 

 nature, begins. But these compound motions, such as gene 

 ration, corruption, &c., should be esteemed certain results or 

 effects of simple motions, rather than primitive motions 

 themselves. The simple motions are, 1. Motion of resist 

 ance, or preventive of penetration of dimensions ; 2. Motion 

 of connection, preventive of a vacuum, as it is called; 3. Mo 

 tion of liberty, preventive of preternatural compression, or 

 extension ; 4. Motion in a new orb, with regard to rarefac 

 tion and condensation; 5. Motion of the second connection, 

 or preventive of solution of continuity; 6. Motion of the 

 greater congregation, or with regard to masses of connatural 

 bodies, commonly called natural motion; 7. Motion of the 

 lesser congregation, vulgarly termed motion of sympathy and 

 antipathy; 8. Disponent motion, with regard to the just 

 placing of parts in the whole ; 9. Motion of assimilation, 

 or multiplicative of its own nature upon another body; 

 10. Motion of excitation, where the noble agent excites the 

 latent and benumbed motion in another thing; 11. Motion 

 of the seal, or impression, by an operation without commu 

 nication of substance; 12. Regal motion, or the restraint ot 

 other motions by a predominant one; 13. Endless motion, 

 or spontaneous rotation; 14. Motion ot trepidation, or the 



