( ^4 
well as by thofe v/Iio deny an AUmfok 'Aiogtth.ti^ or 
(^) fuppofe it to have a different Figure, from ivhat WNeedh. 
. DkmerUoeck affigns it. The Tranfudation (or Filtration ^ 
through thd Membranes J o!' this Pz/awx feems mofthkely 
Mares and ^wj" .3 for in a (^) M^re, the CA<?r/Wis not^^^PI^^^ 
Joyned to^the Uterm^^ 'tiW Oie is half gone, and in-a (^)de ,\i£m- 
Sow it does not adhere to tliQ.ZJ'term till near me end of^^^.^"^-^ 
iier going with yonng. Buv 'tis riioft evident t|^at the d^.Tcai' 
Urine of a Humane F(slm is not contained between the S; ^^'^ 7.' 
Chorion and Amnios^ nor between the Lhorion and J&^ mu? or^ 
Irorn che ciole connexion of thefe Coats to one cap. 15/ ' 
another:5 alfo from, the obfervatioa-ot Mid wives, who 
often find a Bladder of Water ( they call it a BjWdter) 
offering it felf before the C^i/<?/, whereas the Humour of 
the Amnios is little, and of the Chorion much lets, and 
of another Colour, &c, at the time oiQirtid. This Bj/- 
Water is taken notice of, as an argument for an AHantok 
by Mr Con^er^ to whofe affiftance we owe that the Fi- 
gures belonging to thef. pipers appear correft. 
The great (d) Harvey will not allow an AUantok even ^^^^^^^ 
to Brutes, and fancies the AUantok and the Chcfrion to bede memk 
the fame Membrane, that has two names, the firft from its ^ 
fhape, the other from its office, or number of Veflels. 
Yet 'tis plain from Galen and all the Antients, that they 
meant two diftinft Membranes by the AUantok and Cho- 
rion. Dr Harvey thinks that a F(Btm does not void Urine, 
but that the Bladder contains it, till the time of Birth. 
What was offered againft Dionis Opinion may ferve for. 
an anfwer to this alfo. Becaufe 'twas impoffible for this 
diligent Anaton]ift not fometimes to obferve an TJr'iMary 
Bladder, he has thought of ways to explain ftich Ph£no' 
without granting an AUantok. In e ) Sheep andYej Harv» 
Does he had (een as it were a certain Pr^^a/f between thecJe memk 
Vmhilical Arteries full of Urine. This Procefs is no^^^""'^'' 
doubt the AUantok^ though (/J Bartholinus calls it the^^^ ^-^^ ^ 
Urachus. Again, he thinks what is called by others an cap 37. 
Sffff Allan ^ 
