The Mi cr of cope explained. xxix 
end of your Wilfon’s microfcope, at G, fig. 12. in the 
ufual manner, take away the lens D, at the other end 
thereof, and place a Aider, containing the object to be 
examined between the thin brafs plates E. 
Things being thus prepared, fcrew the body of the 
microfcope A B, by the fcrew D, fig. 12. to the tube I 
at M, fig. 4. which Hides into the tube K, and pull 
out the faid tube I, more or lefs, as the objedt is capable 
of enduring the fun’s heat. 
i ! » 1 j ^ ' I 
The microfcope for opake objects. 
A Fig. 14. is a fixed arm, through which paiTes 
9 a fcrew B, the other end whereof is fattened to 
tire moveable arm C. 
D is a nut fitted to the faid fcrew, which when turn¬ 
ed, will either feparate or bring together the two arms 
AC. 
E is a fteel fpring, that feparates the two fides when 
the nut is un fere wed. 
F, a piece of brafs turning round in a focket, whence 
proceeds a fpringing tube, moving on a rivet, through 
which runs a fteel wire, one end of which finifhes in a 
point G, and the other end hath a pair of plyers R fol- 
der’d to it; thefe are either to thruft into, or to take 
up and hold any objedt, and may be turned round as re¬ 
quired. 
I, a ring of brafs, with a female fcrew fixed on an up¬ 
right piece of the fame metal, which turns on a rivet, 
that it may be fet at a due diftance w T hen the leaft magni¬ 
fiers are ufed ; and ferves the ferews of all the magni¬ 
fiers. 
K, a concave fpeculum of filver polilhed as bright as, 
pofiible, in the center of which a double convex lens 
^ placed, with a proper aperture to look through it; 
✓ on. 
