42 THE PROPERTIES AND QUALITIES 



sette in a frame meete for the purpose for use : 

 so that yt may not be broken. And so this glasse 

 being made in this forme, Then yt wille have 

 three marvellous operacyons, or qualityes, as 

 hereafter you shall see. 



CHAPTER VI. 



The first, and the Principall quality of this Glass, 

 and ys, as touchinge perspective. 



The quality of the Glasse, (that ys made as 

 before ys rehearsed) ys, that in the beholding 

 any thinge thorowe the glasse, yow standinge 

 neare vnto the Glasse, yt will seeme thorow the 

 glasse to bee but little bigger, then the propor- 

 tion ys of yt : But as yow do stande further, 

 and further from yt, so shall the perspective 

 beame, that commeth through ye glasse, make the 

 thinge to seeme bigger and bigger, vntill suche 

 tyme, that the thinge shall seeme shall seeme 7 of 

 a marvellous bignes : Whereby that these sortes 

 of glasses shall muche proffet them, that desyer 

 to beholde those things that ys of great distance 

 from them : And especially yt will be much 

 amplifyed and furdered, by the receavinge of the 

 beame that commeth thorow the glasse, somewhatt 



7 This repetition of the words " shall seeme " is evidently 

 a mistake, but being in the original MS. I have retained it in 

 the text. 



