Century 1 1 L 



I 9 



258 



Both of them do receive and *vwrjf exquifite and accurate Differences h As 

 of Colours, Figures, Motions, Diftances, in Vipbles-, And of Articulate 

 Voices,Tones,Songs,and Quaverings, in Audible s. 



Both of them in their Vertue and Working, do not appear to emit any 

 Corporal! Subftance into their Mediums, ok the Orbe of their Vertue Neither 

 again to rife or ftir any evident locall Motion in their Mediums, as they pafs 5 

 But only to carry certain Spirituall Specks . The perfect knowledge ot the 

 Caufe whereof, being hitherto fcarcely attained, we (hall fearch and handle 

 in due place. 



Both of them feem not x.o generate or produce any other Effect in Nature, 

 but fuch as appertaineth to their proper Objects, and Senfes, and are other- 

 wife Barren. 



But Both of them in their own pioper Adion, do work three manifeft 

 Eff ects. The Firft,in that the Stronger pieces drowneth the Leffer •, As the 

 Light of the Sun, the light of aGloworm The Report of an Ordnance, 

 the Voice ^ The Second, in that an object of Surcharge or Excef deflroyeth 

 the Senje As the Light of the Sun the Eie, a violent Sound (near the Ear) 

 the Hearing : The Third, in that both of them will be reverbcrate^Ks in Mir- 

 rours^Andm Ecchos. 



Neither of them doth deflroy or hinder the Species of the other, although 

 they encounter in the fame Medium 3 As Light or Colour hinder not Sound 

 Nor e contra. 



Both ot them affect the Senj 'e in Living Creatures^ and yeeld objects of 

 Pkajure andDiflike : Yet neverthelefs, the objects of them do alio, (if it 

 be well observed) affed and work upon dead Things Namely fuch, as have 

 Come Conformity with the Organs oi the two Senfes As Vifibles work 

 upon a Lookmg-glafi, which is like the Pupill of the Eie And Audibles 

 upon the Places of Eccho, which refemble, in feme fort, the Caverneand 

 ftiudure of the Ear. 



Both of them do diver fly work, as they have their Medium diver fy difpofed. 

 So a Trembling Medium (as Smoak) maketh the Object feem to tremble 

 and a Riling or Falling Medium (as Winds) maketh the S ounds to rife, or 

 fall. 



To Both, the Medium, which is the moft Propitious and Conducible, is 

 ^/r,For Glafs or Water,&c. are not comparable. 



In Both of them, where the object is Fine and Accurate, it conduceth much 

 to have the senfe Intentive, and Erect ^ Infomuch as you contract your 

 Eie, when you would fee fbarply And ered your Ear, when you would 

 hear attentively which in Beafts that have Eares moveable, is moft 

 manifeft. 



The Beames of Light, when they are multiplyed, and conglomerate, gene- 

 rate Heat h which is a different Adion, from the Adion of Sight : And the 

 Multiplication and Conglomeration of Sounds, doth generate an extreme Ra- 

 refaction of the Air which is an Adion materiate, differing from the Adi- 

 on of c ound; Ifitbetrue (which is anciently reported) that Birds, with 

 great fhouts,have fallen down. 



DIS- 



