_ ■ ' ( m ) 
thofe two, is Urinous , he concludes, that the alimentary Juyce 
paffes through the Umbilical veffels, by a proper Artery, de* 
porting it in thofe Membranes we fpeak of and refervingic 
there for the ufe of the Fat us. 
Concerning the Humours, he affirms, that all of them in all 
Animals are 'Nutritive , except that in the Allantoides . He ob- 
lerves alfo, thatmoft of Oviparous Filhes have Eggs s or Spawn , 
as to feofe of one only colour, and but one humour $ yet that 
the Spawn of a Skate hath a White and a Yolk. Birds 
have moftly three nutritious fubftaoces, that are vifible, vi \, a 
Y oik and a double White ; to which upon incubation, comes 
a fourth, colliquated out of the former ; the tender Embryo 
feeding upon the two Whites, till, they being confirmed, the 
Yolk of the Chick, now to be hatcht, is fhui up in the Abdo~ 
men, and thence by a peculiar DuUus conveigbed into the guts* 
and fo ferves the young bird for breafts, it is fed by, until! the 
twentieth day*/' 
In Viviparous Creatures are found fometimes two, fome« 
times three humours, an din Bitches, Cats , and Rabbets, four s 
which perplexeth the Author, as to the giving a reafon for it. 
Thefe Humours , he faith, he hath examined, by concreting 
diftilling,and coagulating them 5 where he furniffies the Rea- 
der with no vulgar Obfervations, He concludes this Chapter 
by obferving, that there is alfo Air in the faid Membranes s 
which befides other Arguments, he proves from the crying of 
Infants in the Womb (of which he alledges a memorable and 
well attefted example in a Child of an Engliffi Lady in Cbe- 
Jhire , the Child being yet alive and in good health ;) and from 
Chickens, often heard to peep in the Egg, both before the 
breaking of the (hells, and after, the Membranes being yet 
< entire 5 adfcribmg the production of this Air to the fpirituous 
! liquor in the Membrane, apt to ferment, and thereby caufino- 
1 (tore of "exhalations. 
The fourth Chapter difeourfes of the Umbilical Vejjels $ and 
obferves/r/?, that they differ in different Animals, and hold 
proportion to the Membranes and Liquors , fo as thofe that have 
two Liquors, have four Membranes, and three Liquors have 
fix : the Oviparous alfo being furnifhed with a Duttns , palling to 
Fff the- 
