( 744 ) 
tfo wiiicfa :wc may add, that thefe O^atures fwim 
in ruch'vaft -ftioals ia their liquid matter, that, to judge 
of them better, and of the Proportion they bear to the 
ilimy matter in which they live, you may compare 
them to a pound of Barley mixt with two pounds of 
Water 3 for as the Barley-corns are to the Water, fo 
are thefe Creatures to their Liquor ^ now this being fo, 
how 'is it poffible that Creatures with fuch forked 
Tails, and crowded together in fuch mighty numbers, 
could fwim about without touching, but even without 
hurting one another. 
If this Author has fuch Microfcopes, and as] fmall 
as can be grinded, he muft examine the Objeft a little 
clofer the next time 5 then he will find his miftake^ but 
if he be not (harp-fighted enough, what fliall one fay 
when he comes to fpeak of a whole Man. 
I have lookt thro hundreds of Microfcopes, and 
fbme of them fo fine that I could ufe them by day light, 
tho- the weather were cloudy, but I could never fpy 
any fuch Tail as is defcribed by Fig. 7. D, but on the ' 
contrary, of millions and millions that I have feen my 
felf and fhewn to others, it has often hw\ppen'd that 
the ends of their Tails were fo fmall that they efcaped 
our fight. 
It is well known to many, that my Hypothefis is , 
that every one of thefe Worms includes a Lamb, yet 
after they are nouriftit and enlargd ill the Belly of the 
Female, they foon put on the fame fnape. 
But this is not ftrange, as we find by experience in a 
Worm or iV'Iaggot, in'^which, after it is come to its full 
growth, whither we diffecl it, or examine the outfide 
only, we find none of its parts like thofc of a Fly ^ and 
that all thefe Creatures, a little before their Tranfmu- 
tation, lye as ftill as if they had no life in. them, and 
a few hours after their Cliange they fhut themfelves up 
iri a Skin or Shell, which we call a Vopj^ or Tonneken^ 
fome 
