A Table. 



4, Refraction at the entrance into 

 the reflectent body is towards 

 the perpendicular ; At the going 

 cut , it is from it ; -when the 

 fccond fuperfictes is parallel to 

 the firjt. 



5-. A refutation of Afonficurdes 

 Canes his ex fit cat ton of re- 

 fraction. 



6. An anfwer to the arguments 

 brought in favour of Monfleur 

 des Cartes his opinion. 



7. The true caufe of refraction of 

 itght both at its entrance, and 

 at its going out from the refle- 



it ing body. 



8. A generall rule to know the 

 nature of reflection and refra- 

 ctions in all forts ofjurfaces. 



$ A body of greater farts and 

 greater f ores, maketh a greater 

 refraction then one of leffer 

 farts and leffer fores. 



10. A confirmation of the former 

 doctrine, out of the nature of 

 bodies that refract light. 



CHAP. XIV. 



Of the compofition, qualities, and 

 generation ofrnixed bodies. 



I. The connexion of this chapter 



with the re fl, and the Authors 



tntent in it. 

 1. That there is a leaflcife ofbo- 



dtes ', and that this leafl cife is 



found in fire. 

 3 The firfl conjunction of farts 



is tn bodies ofletft cife ; and it 

 is made by the force of Quan- 

 tity. 



The fecond fort of conjunction, 

 is compact edne/e infmfle E- 

 lements, and it froceedeth from 

 dcnfitie. 



The third conjunction is of 

 farts of different elements, and 

 it froceedeth from quantity and 

 dcnfity together. 



6. The reafon why liquid bodies 

 do eafily joyn together and dry 

 ones difficultly. 



7. That no two hard bodies can 

 touch one another immediately. 



8. How mixed bodies are framed 

 tn generall. 



cj. The caufe of th*. feverall de- 

 grees tf folidity in mixed bo- 

 dies. 



10. The rule whereunto are redu- 

 ced all the feverall combina- 

 tions of Elements in compound- 

 ing of mixed bodies. 



1 1 . Earth and water are the bafis 

 of all fermancnt mixed bodies. 



12. What kind of bodies thcje are 

 where water is the bafis, and 

 earth the fredominaat Element 

 over the other tiro. 



13. Ofthofe bodies > where water 

 being the bafis aire is the pre- 

 dominant Element. 



14. What k^nd of bodies -refult, 

 where, water is the bnfis, and 

 fire the fredominant Element. 



I j. Ojf thofe badies, where water 



