T&6 Glafs, placd in. the manner of a Barrel Box, li^, ii, 
is only to be nled with the Brafs Inftrument ( or in your 
Hand) being the leaft Magnifyer, for greater Objefts, Inch 
as Flys and common Infedts, 6^c. The hole (a) in the fide 
of this Box fig. 11. is to be fix*d on the point A of the Brafs 
Inftronientj-enicmbring to put the end fb) next to ]^ourEye, 
and the other to the Objcft 5 fo if you take up any Infedt 
m ihe point of tile Tongs k, cr lay any opake Objeft on 
C the other end, you may approach them to the true di- 
itence by help of the Joynts and Screw fpoken of before 
G D; P E, and fee them diftinclly. 
^ In the viewing oi Ohje&s^ one ought to be careful not 
to hinder the light from falling upon Them^ by the Hat, 
Fcrruke, cr any other thing, efpecially when they arc to 
5ock upon opake Objefts : for nothing can be feen with the 
beft of Glafles, unlefs the Objefl: be in a due diftance, with 
a ftitBcienf light* 
The beft Lights for the Plats or Regifters, where the 
Objeft lyes between the two Gla&s, is a clear Sky light, or 
where the Sun Chines on any white thing-, or the reflcftion 
of the light from a Looking- glafs. The light of a Candle 
is likewife good for the circulation of very fmall Objeds, 
tho it be a little uneafie to thofe who are not praftis'd in 
Microfcopes to find out the light of the Candle. 
By what is here faid, it's hopd that the ufe of this Mi- 
crofcope, eafie of it felf, will be much eafier to thofe that 
ufe it 5 yet it cannot be doubted oi Thk^ as of all other 
Inftrumehts of this nature, but thatVfus flura docebit. 
For the conveniency of thofe who would Dr^n?, . or 
make any Sketches or Dejtgns after Microfcopical Objefts, 
I have alfo made a Pe4eftal to fix the Two Infiruments 
above defcribed, and make them ftationary to any conve- 
nient Light. "This Pedeftal may bq. placed on a Table, 
&c. and after the Objed: and Light are fixed, as many per* 
(on? as pleafe may view the Objcd, without any trouble 
or difficulty in finding the Light. 
.The 
