[ < 5,8 ] 
Paid Talc, as it lies in the Hole, and partly to the 
Ivory Sides of the Hole itfelf; by which means the 
upper Talc being kept from being able to prels upon 
the Polype , it may be put on and fixed down with a 
brafs Ring, without any Fear of hurting it. 
If you intend to dry a Polype in its contra&ed 
State, it may be put direttly into the Spirits without 
ufing any Lens ; but if you defire it extended, you 
will find the Lens quite needful. 
Vinegar, Water wherein Salt is difTolved, or Spirit 
of Wine, kills a Polype immediately : But Spirit of 
Wine is fitted for the Purpofe, as it gives a greater 
Firmnefs to the Parts, dries away from the Talc 
fooned, and leaves no Soil or Smear behind it, as the 
others do. 
Having now the Honour to fhew the Gentlemen 
here prefent a Polype prepared after the above Man- 
ner, and inclofed in a Slider between Two Pieces of 
Ifinglafs ; I fhall beg Leave to point out what may 
particularly be learned thereby, and give a Drawing 
of the fame Polype , as viewed by the Microfcope, 
[fee Tab. III. Fig. 5.] in order to make the following 
Obfervarions more intelligible and fatisfa&ory. 
Firft-, As the Body thus dried exhibits a Reticu- 
lation of minute Veficls, which appear every- where 
mod curioudy interwoven, we may reafonably fup- 
pofe they ferve as Veins and Arteries, through which 
fome kind of Blood or Juices circulates, as in other 
Animals: But we cannot didinguifh fuch Blood or 
Juices circulating in the living Polype, or difeern any 
thing like Vcffels, though now they are fo apparent. 
Secondly , The Anus of the Polype may be difeo- 
vered very plainly in this dried Objeft 5 whereas in a 
living 
