( 488 ) 
when I wafh'd away , I found Globules of Mercury in 
many places under the Bronchia , and upon Examina- 
tion they prov'd to be in the Arteria pulmonalis. I have 
prefs'd thefe Globules backwards and forwards, and 
made fbme of them get out at the holes made in the Ve- 
ficuU above defcrib'd. I took fome pains to find where 
the Sanies was receivd into the Bronchia^ but could not 
fatisfie my (elf. From hence may appear the danger of 
ufing Mercury in humane Bodies, fo as that it may get 
into the Mafs of Blood, efpecially into the Lungs 5 they 
wanting that brisk ftrong motion which the Mufcles 
have in other parts , which are able to force it along 
with the Blood , in order to the raifing a Salivation. 
Their lax fpongy Texture makes them extreamly unfit 
for clearing themfelves of fo troublefom a Gueft as Mer- 
cury is. That it has this EfFeft on humane Lungs, is 
plain from what we daily fee in perfons that have been 
often-flux'd, who are after obferv'd to dye of Confum- 
ptions that will not give way to Medicine. 
\ 
Medicina Hydroftatica, or Hydrofiatick* applied to the 
Materia Medica, flawing how by the Weight that divers 
Bodies tifed in Phyficl{ have in Water ^ one may discover 
whether they be Genuine or Adulterate, By the Ho- 
nourable ROBERT BOYLE Fellow of the Royal 
Society^ London, ^°i6^q. Printed for Sam. Smith. 
> I E Honourable Author defigns in this Treatife to 
j[ fhew, that by weighing Bodies in Water, com- 
paring their weight in Air, and from thence deducing 
the proportion of weight to Water, the Specific Gravi- 
ty of Bodies msy be more exattiy determined 5 counter- 
feits diftinguitht from Genuine, and the mixture of mi- 
neral Particles in Stone difcover'd. Archimedes firft ob- 
ferv'd That a Body heavier than Water, weighs kfs in 
Water 
