^the Microfcope explained. xlv 
with eafe ; and the ftomach and bowels lie plainly (be¬ 
fore the microfcope) to be viewed and examined. 
Bits of different colour’d glafs are neceffary for this 
purpofe, to plage objects on, becaufe many obje&s are 
much more diftinguilhable when placed on one colour, 
than on another. Glafs tubes of all fizes are likewife 
of ufe, from one-half of an inch bore to a fine capillary. 
Opake obje&s may be preferved in a box divided into 
cells, each containing a few flips of card, &c. on which 
the objedts are glued with ftrong gum water, or mouth 
glue; and if thefe little flips are ftained with feveral 
colours, which may give a contrail to that of the ob- 
jedl, it will be feen to the bell advantage. 
All other forts of little crawiing animals, which are 
fo very fmall that one can hardly touch them without 
deffroying their lives, are bell glued as it were upon the 
point of a fine fewing needle, firffc dipped in turpentine. 
(The needle being firft made fall to the end of a fhort 
bit of Hick by way of handle to it.) If you do but 
juft touch the back or fide of any one of thefe minute 
animals therewith, it will ftick fo fall thereto, as not to 
be able to remove itfelf; by which means they may 
be examined with eafe and pleafure. The fewing 
needle mull be held between the nippers, and fo placed 
before the magnifier, that any part of the animal may 
be turn’d before the microfcopic lens, by twilling the 
handle of the fewing needle, as you find occafion. 
Hairs, wings of flies, fmall feathers of birds. See., 
are bell perceived, and eafieft examined, when placed 
between two mufeovv talcs in an ivory Aider. 
A me- 
