( 8x8 ) 
its own Bignefs or Gravity forceth it thither, Stones of 
a very confiderable Bulk are generated. 
Of this we have lately had here in Dublin a very re- 
markable Example : One Margaret Plunket alias Weldon, 
to give her her Maiden Name according to the Irifh 
way, the Mother of Five or Six Children, Cozengerman 
by her Mothers fide, who was the Lord Netherfield's 
Sifter, to my Lord firconnell, born in the County of 
Meath, about Sixty Years of Age, now living in Church- 
ftreet, Dublin^ on May 29. 169 1. voided throqgh her 
Urinary Paflage, by the help of Nature alone, without 
the ufe of Remedies, or any forcible means whatever, 
V.F/>.i.a Stone of this Shape and Size, fomewhat refembling a 
hard Pear a little prefs'd or flatted. 
Its Circumference meafured the longeft way is 7 Inches 
and ?o, round about where it was largeft 5 Inches \ ; its 
Weight at prefent, according to Troy Pound, $9, 9/, 
gr. 6. for it has loft confiderably both of its fir ft Bulk 
and Weight by many little Fragments breaking off from 
the fmaller end where 'tis much fofter , fmoother, 
whiter, its parts more porous, and fo incoherent, that 
the leafi force fevers them : Whereas the bigger end 
as far as the Stroke crcpafles, is of a very different 
Texture, much more clofe and compa&, covered with a 
yellowiih fhining Cruft, ruff, granulated, and as hard 
as the beft Portland Stone. 
This different Texture of Parts in one and the fame 
Stone, obfervable in moft of this kind if they be of a 
large Size, proceeds, I am apt to think, from the fame 
conftant Bed or fettled pofture of the Stone in the Blad- 
cer, whereby fbme parts of it are more expofed to im- 
bibe the Moifture of the Urine as it falls or fettles in the 
Bladder than others ; and by this fort of Maceration are 
kept fbft, whilft thofe parts that lie higher towards the 
^pper Kegion of the Bladder remain dry, harder, and 
gather a fort of gritty Cruft, as we find moft fbft Stones 
