feveral inftances that Nature produces great effects from 
fmall and invifible caufes, witnefs the Animal Spirits , 
the objeiStions againft whofe exiftence he firtt removes, 
and then demonilrates, he difcourfes of the efFeds of ima- 
gination, ofPoylons, of contagion, and other preter- 
natural ferments as inconfiderable for their bulk, as mon- 
ftrous in their efFe(3:s,as alfo of the leaft prick of a Nerve, 
he concUides that as great difeales have thofe minute 
caufes, fo likewife their true Remedies are ot fmall quan» 
tity, but of great efficacy* 
}l\sdiicowT{QDe ufu^ abufu preecipitantium is divided 
into three Chapter s, the firft is Hiftorical of the Turgef- 
cency and Orgafmus of the humours, to which are oppof- 
ed J^^/w^^/^j- that precipitate and confequently reprefs 
that exorbitancy, of thefe he gives the Hiftory^ alEgning 
toSennertus the invention of the notion, and difcourling 
of themoft confiderable of them in each of the threei^V?g- 
doms.Tho, fecondChapter hTheoretical of the nature ufe 6c 
manner of working ofthem, & that founded upon the na- 
ture of precipitation in general, which he aflertstobe 
found in the fluids of our body as well in a ftate of health 
as ficknefs. His third and laft Chapter is practical where- 
injs difcourfed at large how they ought to be given, and 
With what fort of Medicines moik effed:ually mixed. 
To this fucceeds De Morfu Viper ce^vjhtXQ from the affer- 
tion of Celfus that the biting of any Animal is venemous, 
he eafily proves that of the Viper tobefo, and having 
confidered and reje<3:ed the various opinions about the 
leatof Poyfbn in the Viper, and proved that it is by no 
means Poyfonous when dead, but each part ofit antido- 
tal, he looks upon the anger of the beaft, or the Idcea fu^ 
roris ^rrZ^^/im printed on its teeth and faliva, to be that 
alone which makes his biting mortal ^ to this he adds 
the Diagnofiicks Vrognoflic\s and Method of Curing, 
The faft trad; is Medicina Hippocratis Chymica which has 
been printed before, & in (hort is a demonftration of Hip- 
A a a pocratei$ 
