46 THE PROPERTIES AND QUALITIES 



of the skylles and knowlledge of these causes, 

 yet I am assured that the glasse that ys grounde, 

 beynge of very cleare stuffe, and of a good large- 

 nes, and placed so, that the beame dothe come 

 thorowe, and so reseaved into a very large con- 

 cave lookinge glasse, That yt will shewe the 

 thinge of a marvellous largeness, in manner 

 vncredable to bee beleeved of the common people. 

 Wherefore yt ys to bee supposed, and allso, I am 

 of that opinyon, that havinge dy vers, and sondry 

 sortes of these concave lookinge glasses, made of 

 a great largeness, That suche the beame, or forme 

 and facyon of any thinge beeynge of greate 

 distance, from the place, and so reseaved fyrste 

 into one glasse : and so the beame reseaved into 

 another of these concave glasses : and so reseaved 

 from one glasse into another, beeynge so placed 

 at suche a distance, that every glasse dothe make 

 his largest beame. And so yt ys possible, that yt 

 may bee helpped and furdered the one glasse 

 with the other, as the concave lookinge glasse 

 with the other grounde and polysshed glasse. 

 That yt ys lykely yt ys true to see a smalle 

 thinge, of very greate distance. For that the 

 one glasse dothe rayse and enlarge, the beame of 

 the other so wonderfully. So that those things 

 that Mr. Thomas Digges hathe written 8 that his 



8 "My father by his continual paynfull practises, assisted 

 with demonstrations Mathematicall, was able, and sundrie times 

 hath by proportionall Glasses duely situate in convenient angles, 

 not onely discovered things farre off, read letters, numbred 



