( 2oo8 ) 
many other particulars , too many to be here rehearled. 
Inf ftiort^you have here well nigh All or the Great eft part 
of the moft abftrufe and intricate Speculations, as well of 
the Antient as the Moderns Geometers, hitherto difcover d, 
( with many new Additional 5) briefly and clearly deduced 
from Peculiar Principles and Methods of his own 5 (efpeci- 
ally thofe of his Arithmetica Infinitorum 3 J which arc alio in 
like manner applicable to Innumerable other Cafes, as oc- 
cafion ihail require* And his Method (in this and the former 
part) deducing all from the firft principles , doth (carce de- 
pend upon any other Treatifcs as neceflary to the under- 
ftanding • five only the knowledge of (bme very ordinary 
things in common Geometry, and lume few Propofitions out 
of his own Arithmetuh^of Itifinits^ with feme fkill in the pra- 
ftice of NhmeroHs and Specious Arithmetick. 
IL E IE R € It A no NES MECHANIC AS, Alexandri 
Marchetti. Pip, 16^9. /^4% to be found at Mr. St^rky's 
ffe^r Temple Bar* 
THis Author declareth, that though many Eminent 
men have already treated of the Subjed of this his 
Book, as Arifiode^ Archimedes ^ Lucas Valerius ^ Guldinus^ Cd- 
lileus and others 5 yet hath he not been deterred from wri- 
ting of the fame Argument^efteeming, that he hath handled 
it more largly., more diftinftly,and more clearly and eafily : 
which, how he does actually perform 3 we leave to Mathe- 
matical Mechanicians to Judge, 
III The Natural HiJior}'af Nit ER, or^ a Philo/pphical Dif 
co^irfe of the Nature^ Generdtton , Place^ and Artificial 
ExtraBionof NITER^ with its Vertues and Vfcs, by 
WIL LIA M € LARKE. London, 1670. in 8°. 
The Author of this Traft, efteeming, that moft, who 
have known this Mineral Body, feem to have had 
but ^partial knowledge of it, undertaketh to deliver here 
its Compleat Hiftory^i And therefore 
Firft, defcribeth Niter by its proper ties, F/g«re (liketha 
of NeedlesJ Tajie (fait, ftiarp and cooling,) and Infla^^ 
mahili^j^ 
