36 THE PROPERTIES AND QUALITIES 



that are made of metalles, which are commonly 

 called Steele glasses. But I do meane three son- 

 dry sorts of forms of making them. As in the 

 one sorte, the beame will shewe y tself accordinge 

 to the bignes, as yt ys : And in the other sorte 

 yt will shewe ytself less, as in the order of the 

 making of yt, the face of a man shall not shewe 

 ytself as broade as the nayle of youre hande. 

 And so accordingly you may make the glasse to 

 shewe the face, at what bignes you lyst, vntill 

 that yt shall shewe the face at inst the bignes 

 thereof. And the thirde sorte of the making of 

 glasses as you may make the glasse, in sorte, 

 that you will make the face as bigg as the whole 

 glasse, howe broade soever that the glasse ys, 

 yow standing at some one assigned distance. 



CHAPTER II. 



In what forme to make Glasses, for to have yt 

 shewe yt self, according to the bignes of the 

 thinge. 



For to have a Glasse (to shewe the beame vnto 

 the eye of that biggnes that the thinge ys) That 

 glasse must bee made flatt and playne ; and being 

 well polysshed, and smoothe, and well foyled on 

 the back syde. Then you standinge righte with 

 the middle thereof, you shall receave a beame 

 vnto your eye of the trewe forme and shape of 



