An Accompt of fome Boo^. 
I. De MOTION IB VS A GRAVITATE DEPENDENTISVS 
Liher Joh.Alphonfi Borelli, In Academ, PifanA Matheftos Pr$fejforts : 
Rcgio Julio, 1670. in 4**. 
THe Learned Author of this Book maintains therein, That all 
Bodies Sublunary have Gravity ; they exercife this in en- 
deavors to approach towards the Center of the Earth : that the fu- 
perior Body or the fuperior parts of the fame. Solid or Fluid, do 
gravitate on the inferior, when at reft : that there is no Peftthe Le- 
vity in nature: that Lighter bodies afcend ^ becaufe thruft out of 
their place by Heavier : that the Air is heavy, Elaftick or Springy, 
and doth thereby perform thofe things that were wont to be afcribed 
to Fuga Vacui ^ that the fame is capable of very great Expanfion and 
Contraftion : that there is not in nature any proper Attradion or 
SuAion J but things feeming. % t(>-be performM are done by the 
Pulfion or Trufion of other B^ies : that there is a Neceflity and a 
great life of Vacuities in nature, notwithftanding the fubtile and all- 
pervading Matter of Des- Cartes • with many other things confonant 
hereto. For thefe Affertions he brings Arguments ^ anfwers Ob. 
jeftions and Difficulties, and particularly thofe that are alledgcd to 
affert a V^cmm : And from thence folvcth a great many Phdinomena in 
Nature 5 as, about tht'torrlcelllan Experiment and others thereunto 
appertaining-, /i^m Siphons , Pumps, Syringes, Cupping- glaffes, 
&c. the Nature of Fluidity i (where he examins and animad- 
verts upon the C^r^^yT^» dodrine concerning th« fame : ) the Afcent 
of water above its Level (in fmall Pipes and otherwife ^ ) and its 
contraftingitfelf into Globular drops: of its Expanfion in Freez- 
ing, and its Strength thereupon : ^of the Degrees of Velocity in 
lighter Bodies afcending in Water ^ and of Water running out of 
Tubes or other VefTels perforated at the bottom : of Fermentations v. 
and Diflblving Salts, Mettals, &c. in liquid Menftruum*s : with 
many more, too numerous to repeat here. 
n. Diffcrtationes dua? Medicae PESTILENTI t^tw 
dio Caroli de la Font, M,D. & in Acad. Avenlon, Prof prlmar. 
Amftelodami, iftiz», 
IN the former of thefe two Diffcrtations the Author treatcth of the 
Nature and Caufes of the Plagfte, without any recourfe to Occult 
Qualities, or the Influence of the Stars-, deducing the Pcftilential 
Venom from the Air infefted and corrupted ^^f'^^fly hy Arfenical 
Exhalations 
