(«*0 
do, that are dug out of the moid Earth, when expofed 
n while to the dry Air. 
It feems to me very probable, that Stones when they 
come to be of a large fee, keep much one and the fame 
pofture in the Bladder at all times, there not being room 
in Co pliant and membranous a Body, that always con- 
tracts it felf to the lead Dimenfions it can , to allow a 
Stone of any confiderable Bulk for the Cafe is different 
in thofe that are fmall, to tumble or change its Situation 
very much. 
But however this Conjecture may prove true or falfe^ 
'tis undeniable, that iome Stones from their way of Ge- 
neration muft of neceflity remain fixt and immovable in 
the Bladder ; being clofely joined and united to the very 
fubflance of its Membrane, of which fort there are fe- 
veral Examples recorded by Scenkius y znd other Collectors 
of Obfervations : And I'm perfwaded this Stone I am 
now defcribing may be reckoned among them : For a- 
bout the larger end, where 'tis marked ddd % there ftili 
clofely adheres feveral thin Films and carneous Filaments, 
which manifeftly ftiew it was formerly united by this 
part to the membranous Subftance of the Bladder, and 
that lately by its own Weight, or fome other Accident, 
it was torn away, and fell into the Vrethra^ through 
which 'twas voided ; and hence it was that this Woman, 
as Ihe her felf told me, never fufpeCted her felf, till very 
lately, at all troubled with the Stone. 
For thefe Three Months paft, whilft 'twas flicking in 
■ the Urinary Pafiage and corning away, Hie has fuffered 
great Pains, and a perpetual Strangury, or an involunta- 
ry dropping of her Water from her ; and this Infirmity 
full continues, by reafbn the largenels of the Stone has 
over-ftretch'd the Fibres that compofe the SphinCter of 
the Bladder in its PaJIage through it,, whence their Tone 
is Co relaxt, they have loft all power of Retention : And 
for this Reafon, I find ail Women that void S.ones this 
O o z way, 
