158 ADVANCEMENT OF LEARNING 



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. 

 Motion of liberty, preventive of preternatural compression, 

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

 faction and condensation; 5. Motion of the second connec 

 tion, or preventive of solution of continuity; 6. Motion of 

 the greater congregation, or with regard to masses of con 

 natural bodies, commonly called natural motion; 7. Motion 

 of the lesser congregation, vulgarly termed motion of sym 

 pathy and antipathy; 8. Disponent motion, with regard to 

 the just placing of parts in the whole; 9. Motion of as 

 similation, or multiplicative of its own nature upon another 

 body; 10. Motion of excitation, where the noble agent ex 

 cites the latent and benumbed motion in another thing; 11. 

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

 communication of substance; 12. Eegal motion, or the re 

 straint of other motions by a predominant one; 13. Endless 

 motion, or spontaneous rotation; 14. Motion of trepidation, 

 or the motion of systole and diastole, with regard to bodies 

 placed between things advantageous and hurtful; 15. And 

 lastly, Motion couchant, or a dread of motion, which is 

 the cause of many effects. And such are the simple mo 

 tions that really proceed out of the inward recesses of 

 nature; and which being complicated, continued, used al 

 ternately, moderated, repeated, and variously combined, 

 produce those compound motions or results of motion we 

 call generation, corruption, increase, diminution, alteration, 

 translation, mixtion, separation, and conversion. 



The measures of motions are an attendant on physics, as 

 showing the effects of quantity, distance, or the sphere of 

 activity, intension and remission, short and long continu 

 ance, activity, dulness, and incitation. And these are the 

 genuine parts of abstract physics, which wholly consists 1. 

 In the schemes of matter; 2. Simple motions; 3. The re 

 sults of sums of motions; and, 4. The measures of motions. 

 As for voluntary motion in animals the motion in the ac- 



