X 
Of preparing and applying Objects. 61 
ftrong but very tranfparent Gum-water, and 
with that dick on your Object. As the Spots 
of Cards are red and black, by making your 
Slips of fuch Spots, you will obtain a Contrail 
to Objects of almoit any Colour ; and by 
fixing black Things on the white, white on 
the black, blue or green on the red or white, 
and all other coloured Objects on Slips moil 
contrary to themfelves, they will be ihewn 
to the bell Advantage. Thefe Slips, are in¬ 
tended chiefly for the new-invented Micro- 
fcope for opake Objeds, to be applied be¬ 
tween the Nippers: but they will alfo be pro¬ 
per for any other Microfcope that can ihew 
opake Bodies. A little fquare Box ihould be 
contrived to keep thefe Slips in, with a Num¬ 
ber of very ill allow Holes j nil big enough 
to hold them. If fuch Holes were cut 
through Pieces of that Paiteboard Covers of 
Books are made of, exadtly fitted to the Box, 
and a Paper was pailed on one Side of each 
to ferve for a Bottom to it, three or four 
fuch Pafteboards, ilored with Gbjeds, might 
lie one upon another in the fame Box, and 
contain an hundred or more Slips, with Ob¬ 
jects faflened on them, always ready for Ex¬ 
amination. It will not be found amifs to 
provide fome Slips larger than others, for 
the Reception of different-fized Objeds : 
but the Pattern hereto annexed (Plate VI ) 
will better explain my Meaning. The Box 
ihould likewife be furnifhed with a Pair of 
Flyers, 
