( fl 1 ) 
declaring the variety of thefe Phanomena % together with a ve* 
ry ingenious affignation of the Caufe of that variety. Where 
do occur many on- common Obfervations concerning the dif- 
ference of Milhfu ruminating and other Animals ; the various 
degrees of tbichnefs of the Vterin liquor in Oviparous and Vivi- 
parous creatures s the property of the humour, turning into 
Eggs, with a -hint of. the caufe of their being excluded, and 
not quickned and formed within $ as alfo, of the caufe of 
Moles in the womb, and of many kernelly and fleiliy fubftan- 
ces in other parts of the body: where he takes notice of a 
concretion feen by himfelf grown to the Cone of the Heart, 
of nine ounces weight in an healthy Body, that died of a vio- 
lent deaths and of the like adhering to the Spleen , tQdneys, 
Liver , without any perceived trouble to the Animal; yea, of 
fome* found within the heart it felf. 
t He adds the Number^ Shape, and Vfe of thefe Placentas ; 
and firfl obferves, that thofe that are Jfernelb earing Animals, 
or chewing the Cud, have many ; and thofe that ar eCd%e r 
hearing, have, for the moft part, one Ca\e for each fatus ; but 
a wotUan commonly but one, though file happen to have 
many Emhrios. 
He annexes a particular defcription of the Placenta or a 
Woman, as the moft confiderable, and teaches, how it may 
be moft conveniently fevered from the V eflels ; to render them 
confpicuous, which area numerous off-fpring of Arteries, 
Veins, and Fibres ; of the laft whereof he inquires, whether 
they be the capillary’s of the Arteries, and Veins, or nervous. 
The Shape of that in a Woman is Orbicular , about a foot 
large, and two inches thick; one of its Superficies’s, convex, 
but* uneven, the other concave, and every where flicking 
elofe to the Chorion . 
The Vfe of the Placentas is known to be, to ferve for con- 
veighing the aliment to the Fatus. The difficulty is only about 
the manner. Here are examined three opinions, of Curvey % 
Everhard , and Harvey . The two former, do hold, that the Fa- 
tus is nourished only from the Amnion by the Mouth ; yet with 
this difference, that Courvey will have it fed by the Mouth when 
itisperfed, but, whilft it is yet imperfect by filtration only 
through 
