Cn9) 
Caufei which thoughts znnpunt to tJ)is;That Liquors are upon 5*»^?^- 
m raifed into pipes or other hollQw Bodies,when and fo far as there 
isa lefs preffure on tlie Surface of the liquor in the Cavity, than on 
the Surface of thp EKternal liquor thgt furrounds the hollow body ; 
whether that Preffure on thofe parts of the external liquor, that are 
from time to time impelleid up into the orifice of the Pipe, proceed 
from the weight of the AtHiofpbere^or the propagated compreffioo 
or impulfe of fome parts of the Air,qr the Spring of the Air.or feme 
other Caufe, as the preffure of fome other body quite diftin^ 
from Air, 
ir.K.P.Claudii FrancMilliet de Chales e S.J.CURSUSfeu MUN- 
DUS MAtHEMJTlCUS.umverfam Mathefm trlkm tomU com- 
■pleltens. Lugduni, 1674. i^fi^* 
TH E Author of this great Work declares in his Preface^ that, 
having confidered with himfelf the feveral things,tbac render 
to young Students of the Mathematicks the Study of thofe Sciences 
difficult and perplexed, hehath endeavour'd fo tocompofe and 
frame this his Curfus Mathematics ^^iS that every one,having bur or- 
dinary good parts, lliall be able, by theattent perufa! of the farije, 
without any other Mafter or Guide, to penetrate into theinmoft 
depths thereof. 
Ihtfirfi Tome comprehends Eight Books of EucUdt^ Arithmetick; 
thecdojim his Sphericks;Trigonometry ^Praflical Geometry^Mecha- 
nicks; Staticks-jUniverfal Geography; a Treatife of theMagnetj Ar- 
chitedure, and Carpentry. 
Concerning Euclid^ he diffwades from teaching Novices all the 
Books of E^J^W indifferently ; alledging to have by experience 
found, that, at the beginning, time is ill fpent in learning his 7^b, 8f^» 
9^^* and 10^^ Books; and therefore would have his ^yro content hiin- - 
Telf with the knowledge of Euclid's firft 6 Books, and the 1 1^^, and 
part of the 1 2*^,(which Books he faith he hath rendred eafie,)foraf' 
niuchas all the principal parts of the Mathematicks may be de- 
monftrated without the other Books of that Author. 
Touching Arithn>etick^\\t delivers the Rules of it both in Integers 
and Fraftions, together with the Extraftion of the Square and Ci> 
bick Roots V annexing thereunto Arithmetick with Counteis, and 
by Divination* 
And becaufe the Principal Bodies,that are of a MathematicaiCon-. 
fideration, are Spherical, he inferts here the Elements oiSfhericks, 
as by which the chief proprieties of the Celeftial Orbs are demon- 
•ft rated : And thofe Elements he takes from the famous IhodcfM 
who lived in the time of Eom^ef^ Great. His 
