Cautions in viewing Objects. 63 
Pafs no judgment upon Things over-ex¬ 
tended by Force, or contracted by Drynefs, 
or in any Manner out of their natural State, 
without making {hitable Allowances, 
There is no Advantage in examining any. 
ObjeCt with a greater Magnifier than what 
fhews the fame diftinCtly; and therefore, if 
you can fee it well with the third or fourth 
Glafs, never ufe the frit or fecondg for the 
lels a Glafs magnifies, the better Light you 
will have, the eaiier you can manage the 
ObjeCi, and the clearer it will appear. 
It is much to be doubted, whether the 
true Colours of ObjeCts are to be judged of, 
when feen through the greatdft Magnifiers : 
for as the Pores or Interfaces of an ObjeCf 
muft be enlarged according to the magnify-^ 
ing Power of the Glafs made ufe of, and the 
component Particles of Matter mud: by the 
fame Means appear feparated many thou- 
fands of times farther afunder than they do 
to the naked Eye, their Reflections of the 
Pvays of Light will probably be different, and 
.exhibit different Colours. And indeed the 
Variety of Colouring fome ObjeCts appear 
dreft in, may ferve as a Proof of this. 
The Motions of living Creatures them- 
felves, or of the Fluids contained within 
them, as feen through the Micrafcope, are 
like wife not to be determined without due 
Confederation : for as the moving body and 
the Space wherein it moves are magnified, 
VpL. I. P the 
