Of Examining O bjects. 55 
another, with Cones ; and in other Pofitions, 
of quite other Shapes. 
The Degree of Light muff be duly Ant¬ 
ed to the Object; which, if dark, will be 
feen belt in a full and ftrong Light; but if 
very tranfparent, the Light fhould be pro- 
portionably weak : for which Reafon there 
is a Contrivance, both in the Single and 
Double Microfcope, to cut off Abundance of 
its Rays, when fuch tranfparent Objedls'are 
examined by the greated Magnifiers. 
The Light of a Candle, for many Objects, 
and efpeciallyfuch as are exceedinglyminute 
and tranfparent, is preferable to Day-light: 
and for others Day-light is bed ; I mean the 
Light of a bright Cloud. As for Sun-fhine, 
it is reflected from Objedts with fo much 
Glare, and exhibits fuch gaudy Colours, 
that nothing can be determined by it with 
Certainty; and therefore it is to be accounted 
the word Light that can be had. 
This Opinion of Sun-fhine mud not 
however be extended to the Solar Micro¬ 
fcope, which cannot be ufed to Advantage 
without its brighted Light ; for in that 
Way we fee not the Objedt itfelf whereon 
the Sun-fhine is cad, but only the Image or 
Shadow of it exhibited upon a Screen; and, 
therefore, no Confufion can arife by the 
glaring Reflection of the Sun’s Rays from 
the Object to the Eye, which is the Cafe in 
other Microfcopes. But then, in that Solar 
Way, 
