[ 9 1 
ing made with a proper Spring, fo as t» give 
way for thgir Reception ; and under the Stage 
is a proper Cavity for to hold a Glafs Tube, 
which fprings in the fame manner. 
F. Is a femicircular Brafs Frame, holding a Con¬ 
cave and plain Glafs, which by placing at a 
proper Angle receives a Light from the Sky 
or Candle, and throws it upwards on the Ob¬ 
ject fixt on the Stage to be examined : The 
Stem of the Semicircle mutt be fixt in one of 
the Holes in the Pillar at i. 2 , as the Ob- 
ferver ihall find molt requifite.-The three 
greateft Magnifiers will probably require it 
at 1. 
G. A double Convex Lens, which turning on 
two Screws, tranfmits light to affift in illumi¬ 
nating Opake Objects. The long Cylindrical 
Part c, is placed in the fpring Tube d, fattened 
to one Corner of the Stage. 
H. Is an Ivory Slider with four Holes, in which 
any very minute Object may be confined be¬ 
tween two piece of Mufcovy Tales or Ifin- 
glafs. Of thefe the Curious may be fupplied 
with what number they pleafe, eight only are 
fold with the Microfcope, fix of which are 
filled with Qbjeds, and are numbered 1, 2, 3, 
4, 5> 7> 8, and contain the following Ob¬ 
jeds, beginning with the Hole next the lharp 
End of the Slider. 
