OF BODIES, Chap.XXX. 



what above them ; and chat fide df'it at which the colowreci bo- 

 dies mufl enter into the glalTe to come to our eye, paralteic un- 

 to thofe bodies .; it is evident, iliac the Uack will come into the 

 pri/me by iefler angles dien tli white : I meanest ;n the 

 jine ofdiftance ironi th.it face of the gJajffe at which the 

 colours do come in, a longer line or pa;t of black \viJi iuhtend 

 an angle, no bigger then a ieiicr Jine or part of white doth 

 /iibteod. 



Thirdly, we are to note, that from the fame point of the ob- - 



ject, there come various beames of light to that whole fuper.- The rcafon 

 ficies of the giafle ; fo that it may, and fometimes doth happen, why Comet imcs 

 that from the lame part of the object, beames may be reflected thc fame b- 

 to theeye/rom feverail parts of that fuperhc;es of the glaflfe at ^ appearcth 

 which they enter. And whenlbever this happeneth, theobjed priS^ in t wp 

 mult neceifarily be feenein divers parts : thttis, thepiducec/ places .-and in 

 it will at the fame time appeare to the eye in divers places. And e plac mocc 

 particularly, we may p^inely obfervetvvopictures,onealivdy h'vely, iathe 



and li:ron one j the otaer a fame and dim one.Of which the dim ! ?!/ J 

 ii i- i j / j i n^oredinU:..- 



one will appearc neerer us.,then the lively one : ana is cauied by 



a iecondary ray :or rather .1 iliouid fay, byaloogecray, that 

 f trilt ing neererjto the hither edge oftheglaffes fuperficies (which 

 is the furtheft from the obj'edjmaketh a more acute angle then 

 a (hotter ray doth, that, ftnketh upoiija part ofthe giaflfe farther 

 from our eye, but neerer the obje A. And therefore the image 

 which is madeby this Iecondary or longer ray, muft appcareboth 

 neerer ind more dusky , then the image made by die primary 

 and ihorrer ray. And the further from the object tjiat the glafle 

 through which it reflecteth is fituated (ke*pmg itiii in che lame 

 parallel to the horizon ) the further the place-where the fecond 

 ausky picture appearcth, is from the place where the primary 

 iirong picture appeareth. 



Ifaaymanbavtamindtofatisryhhnfelfeby erpericace, oj 

 the truth of this note,let him place a flieet of white paper upon 

 a black carpet cohering a table/o as the papei may reach within 

 two or three fingers of theedge of the -cacpet, ( under- which,, 

 kt there be nothing to fuceeed the biack of the carpet, but the 

 empty dusky Ayre ) and then let hiaa-fethiraieUc at a con- 

 venient diitance, ( the mcafure of whih is, that tsbc-papar 

 appearc at his fecte^when hee ioketh through the gtefle ) and 



Bb a looke 



