An Accompt of fome Books* 
I, JoliannisWallifii, Sjh.D. Geometric Profe[foris in Academia 
Oxonienfi 5 Trailatus de MOTV Pars 111, A, 1671, 
in, ^o. 
IN this third andlaft part the Excellent Author (continuing 
hisDoftrine of Motion^ begun in the two foregoing parts.) 
treats, amongft other things, of the Five Mathematical rowers 
(as they are called,) or noted Engines for the facih'ration of 
Motion 5 which are Fif^V/., dxit in Peritrocbio^ Trochlea^Cochiea^ 
^ Cuneus (the LeaverjWiDchjPulL. y^Screwjand Wedge, ^ with 
others reducible to thenx» Aid particularly, of the Leaver 
(in its mod ufual acceptation,) wiih one (upport (and therein 
of the Pinebers znd Sheer s^^c,^ and of a Beam^ Cole^flaff. &c. 
iaft^ined by two or more iupporters, with the feveral prctrnres 
on each of thenij according to their different pnfitions^ where 
sir® are defcribed fix feveral forms of Flat Proofs, for large 
Pvooms, framed of (hort Timbers (much fliorter than the 
breadth of the RooiHj) mutually fupportifig one another ; 
with methods of computing the weight fuft liaed by every 
joints Of fevera! forrs of Winchers^Wtnderj^ Capilanj^ poller 
wheels oj Engines ox houtteethj Boaren, Cranes^ See, 
wiih the Reaion and Me^^fure of their force ^ As likewife the 
IVhceh of CoAch.es, CartSyor Waogon -^ with the Reafon of divers 
circumftances in the Fabrick and ufe of them: Of Pulleys --^ 
of themeafure and reafon of their ftrength. Of Screwy ^ with 
the reafon of their great force^and the mertfure of It; alfo^ 
the meafure of the Length of the Spiral line about a Cylinder 
(whence the Screw takes its rife,) and of the Solid content of the 
Screiv. Of the Compofitton^ Accele afioi.^ud /{etardation of Moti- 
ons ; and the motion of ProjrUUs (things thrown^ fliot, &c. ) 
with the nature of the lines defcribed by fuch motions* Of 
ferctijfion or (Iriking 5 with the meafure and effcfts of Blows^ or 
Stroakj, accordir^g as the bodies ftriking do differently occur 
one to the other, and the Center of force in fuch Percuffion, 
Of 
