Mouthy but by a Peculiar dums t > by him defcribed, into the Intefiins, where ac- 
cording to his alledged. experience^ is turn'd into Chyle .‘ which he a’ffirms * he 
hath d.ifcover’d,by taking an Egge from under a brooding Hen, when the Chic- 
ken was ready to break forth , and when he was looking for the paftage of the 
Toll^, out of its integument iato the Liver, by finding it pafs thence into the /»- 
tefiins, ashe fouud the to do by the month into the belly* Whence he 
inclines to infer , that, fince every .fytus takes in at the mouth the liquor it 
fwims in, and fince the Chicken receives the white of the Egge into the mouthy 
and the yolk^by the new difcover’d dft&fis into the Intefiins, it cannot be certainly 
made out, thac a part of the Chyle is conveyed into the Liver, before it paffes into 
the Heart : Exhorting in the meantime the Patrons of the Liver, that they would 
produce Experiments to evince their Ratiocinations. 
III. Regneri de Graeff, de Sncci Pancreatici Natura & ufu, Exerdtatio Ant- 
t(?»?iVe-w£ , ^c4.In'thisTrad J tIieInduftnoiis Author j after he has enumerated the 
various opinions of Anatomies concerning the ufe of that kernelly fubftaneej 
call’d Pancreas (in Englifh, the Sweetbred ) endeavours to prove experimentally 
chat this Glandule was not form’d by Nature, to feparate any Excrementitious 
humor, and to convey it into the Intefiins, but to prepare an ufeful juyce out of 
the Blood and Animal fpirits,of a fomewhat Acid tafte , and toearry the fame 
into the Gut, call'd Duodenum, to be there mixt with, the Aliment, that has been 
in fome degree already fermented in the Stomack, for a further fermentation, to 
be produced by the conflux of the faid acid Pancreatic^ juyce and fome Bilious 
matter,abounding with volatile Sak,caufing s an Effervefcence ; which done, that 
juyce is, together with the purer part of the nourifhment, carried into the Milkie 
veins, thence into the common receptacle of t he Chyle and Lymphatic liquor , and 
fo through the duBus Thoracicus into the right Ventricle of the Heart; 
This Affertion,firft advaneed(faith the Author) partly by Gcthofredus Mebius, 
partly by Francifcus de le Boe Sylvius, he undertakes to prove by experiments ; 
which, indeed,he has with much induftry , tried upon feveral Animals , to the end 
that he might coiled: fome of this juyce of the Pancreas for a tafte: which having 
at iaft obtained, and found it fomewhat acid , he thereupon proceeds to deliver 
his opinion both of the cenfiitution and quantity of this Succus in healthy Animals, 
and the vices thereof,in the unhealthy : deriving moft difeafes partly from its too 
great Acidity, or from its faitnefs,or harfhnefs • partly from its paucity or redun- 
dancy : but efpecially, endeavouring to reduce from thence, as all intermittent 
Leavers (of all the Phanom.ena whereof he ventures to aflign the caufes from this 
Hypothecs) fo alfo the Gout Syncope 1 s , Stranguries ,Oppiiations,Diarrha as , D]f en- 
terics, By flerical and Cotic\ paffms&c. All which he concludes with mentioning 
the waies and remedies to cure the manifold peccancy of this juyce by Evacuati- 
ons and Alterations. 
This feeming to be a new as well as a conftderable difcovery,it is hop’d, that 0- 
thers will by this intimation be invited to profecute the fame by further experi- 
ments,either to confirm what this Author has ftarted,if true, or to re&ifie it,ifhe 
be miftaken. NOT E* 
In Fig, i. of Num. 9 of thefe Trads,the Graver hath placed the bended end 
of the fpringingwire C F,above the wire-ftaple B, between it and the Ring E» 
of the weight D ; whereas that end fhould have been fo expreffed, as to pafs un- 
der the wire'ftaple-tbetmxt its two Wires^into the faid Ring . 
London , Printed for John Aiartyn, and James Allefiry^ Printers to 
the Royal Society. 1666, 
