This Assertion, first advanced (saith the _Author_) partly by _Gothofredus Mobius_, partly by _Franciscus de le Boe Sylvius_, he undertakes to prove by experiments; which, indeed, he has with much industry, tried upon several Animals, to the end that he might collect some of this juyce of the _Pancreas_ for a taste: which having at last obtained, and found it somewhat _acid_, he thereupon proceeds to deliver his opinion both of the _constitution_ and quantity of this _Succus_ in _healthy_ Animals, and the vices thereof, in the _unhealthy_: deriving most diseases _partly_ from its too great Acidity, or from its saltness, or harshness; _partly_ from its paucity or redundancy: but especially, endeavouring to reduce from thence, as all _intermittent Feavers_ (of all the _Phaenomena_ whereof he ventures to assign the causes from this _Hypothesis_) so also the _Gout, Syncope's, Stranguries, Oppilations, Diarrhaeas, Dysenteries, Hysterical_ and _Colick passions_, &c. All which he concludes with mentioning the waies and remedies to cure the manifold peccancy of this juyce by Evacuations and Alterations. This seeming to be a _new_ as well as a _considerable_ discovery, it is hop'd, that others will by this intimation be invited to prosecute the same by further experiments, either to confirm what this Author has started, if true, or to rectifie it, if he be mistaken. * * * * * _NOTE._ In _Fig._ 1. of _Num._ 9 of these Tracts the Graver hath placed the bended _end_ of the _Springing Wire_ C F, above the _Wire-staple_ B, between it and the _Ring_ E, of the _Weight_ D; whereas _that_ end should have been so expressed, as to pass _under_ the _Wire-staple_, betwixt its two Wires, into the said _Ring_. * * * * * _London_, Printed for _John Martyn_, and _James Allestry_, Printers to the Royal Society. 1666. {179} * * * * * _Num._ 11. PHILOSOPHICAL _TRANSACTIONS._ * * * * * _Munday_, _April._ 2. 1666. * * * * * The Contents. _A Confirmation of the former Account, touching the late _Earth-quake_ near _Oxford_, and the Concomitants thereof, by Mr. _Boyle_. Some Observations and Directions about the _Barometer_, communicated by the same Hand. General Heads for a _Natural History_ of a Country, small or great, proposed by the same. An Extract of a Letter, written from _Holland_, about _Preserving Ships from being Worm-eaten_. An Account of Mr. _Boyle's_ lately publish't Tract, entituled, _The Origine of Forms and Qualities_, illustrated by Considerations and Experiments._ * * * * * _A Confirmation of the former Account touching the late _Earth-quake_ near _Oxford_, and the Concomitants thereof._ This Confirmation came from the Noble Mr. _Boyle_ in a Letter, to the _Publisher_, as followeth: