154 Mifiellanea Curio fa. 



ufe at all ; befides that they may be imploy'd in 

 the Day-time, as well as Perfpe&hes, whence 

 they may (not unfitly) be term'd the mofl ujeful 

 Instrument of the two. 



g. As Micro/copes or Magnifying-Glajfes help 

 the Eye to fee near Obje&s, that by reafon of 

 their fmallnefs were Invijtble before j which Ob- 

 jects they Magnify to a ftrange greatnefs : So 

 Microphones or Micracoufiickj, that is Magnify- 

 ing Ear Inftruments, may be contriv'd after that 

 manner, that they {hall render the moil minute 

 Sound in. nature diftinclly audible, by Magnify- 

 ing it to an unconceivable loudncls. 



By the help hereof we may hear the different 

 Cries and Tones, as well as by Micro/copes fee the 

 divers Shapes and Figures of the (mailed Ani- 

 mals. 



4. As by Polyfcopes or Multiplying-Glajjes, one 

 thing is reprefented to the Eye as many, whe- 

 ther in the lame or different Shapes (for lb 

 Multiplying-Glaffes may be contriv'd : ) So by a 

 Polyphone or PolyacoufiicJ^ well order'd, one Sound 

 may be heard as many, either of the fame or a 

 different Note. Infbmuch, that who ufes this 

 Inftrument, he (hall, at the Sound of a fingle 

 Viol, feem to hear a whole Conlbrt and all 

 true Harmony. By which means this Inftru- 

 ment has much the advantage of the Poly- 

 fcope. 



And thus much may fuffice for comparing the 

 Improvements made' upon ^ef ratted Seeing and 

 Bearing j I call it Refratted Hearing, becaufe made 

 through a Medium, viz. thick Air, or an Inftru- 

 ment, through which the Sound pafling is broken 

 or refra&ed. 



tit Repfte<i 



