[/34] 
A V^Mcvi^t to the Publifti^r, containing a fbort 
account of two Human Calculi, t^f unufual form 
and bignefs^ from the famt S. M, D- 
I 'Here fend yoQ' die Figure of a Stone ^ Fig. ij. of 
a prodigious fi'^e and as rare a Jhape, fomewhat rcfem- 
bling indeed the Kidney^ for that was quite worn away, 
and ^h^s/(?^^^^U^d lap the/^/^r^, it weigh d' indeed fome- 
what more when I took it out of the Body, than it does 
now, for it then weighed feven ounces and a half; there 
is no Hiflery ^zx. relates any account of a//o;^^ genera- 
ted in the Kidney ^ that does near parallel this. Without 
bf eaking it afunder, I can find it does confift of feveral 
lamince laid over one another , as that of the Bladder 
does; I took t\\Q Circumfermce, and found it to meafure 
feven Inches upon the round. 
That taken out of the Body of the late DuJ^ of W?r- 
j^/^ J* Father , i?^. 2. was brought not long iince to the 
3{jSociety by Sr. Theodore de j^aux^who gave meiea ve to fend 
you the Figure of it, which you fee is branched, and 
feems to have fpread fome branches into great Fejfe/s, 
whether Arteries y Veins or into the Ureter I cannot de- 
termine, tho thefe as well as the Pelvic feem to have been 
fiird up by this great ftone : yet this comes far fliort of 
that before mention'd, fince it weighs but four ounces 
and a half : a Jlone indeed of an incredible fizeto be found 
in the Kidney^ The. meafure loogwife from one extreme 
to the other made four Inches compleat ; the extenfion 
of the 5r^/^^Z><?J• from one to the other meafur'd crofwife 
or tranfverfly, 3 Inches and a half. This is defervedly - 
laid up in the \poftory of the J{oyal Society, as a great 
but forrowful Rarity ^ having caufed the death of fo 
^tc^tti Patron Learning. 
