[ 218 3 
bladder, were loaded or crufted with any calcarious 
matter ; an effect moft unjudly afcribed to foap and 
lime-water, dnce in the urinary paflages, to which 
the air has no accefs, they cannot depodte their cal- 
carious part (13) ; and dnce the white duff obferv- 
able in the urine of fuch patients, as take thefe medi- 
cines in large quantities, is only the ufual fediment 
of the urine changed in its nature and colour, 
with, perhaps, fome of the diiTolved particles of the 
done (14). 
As the urinary paflages were no- way injured, fo 
neither were the domach, guts, and other 'uifcei'a of 
the lower belly. Thefe had all a healthful appear- 
ance, except the gall-bladder, which was almod full 
of biliary concretions : nor is it furprifing, that foap 
and lime-water, which prevent the growth of urinary 
calculi , Ihould have no ededt on biliary dones, dnce, 
altho’ thefe medicines didolve the former out of the 
body, yet they do not make the fmalled impreflion 
on the latter. 
I prefume it will be needlefs to take notice, that 
the lingering nervous fever, of which Lord Walpole 
died, cannot, with any colour of reafon, be afcribed 
to the large ufe of foap and lime-water ; dnce, if they 
could have produced fuch an effedt, they mud have 
done it in much lefs time than eight years and an 
ha f 
.It may not be amifs to obferve, that altho’ foap 
and lime-water, taken in large quantities, are no- 
way injurious to health, yet in fome cafes they may 
(13) Eflay on Lime-water,^. 2d edit. p. 170. 
(14) Ibid. p. 24, 25. 30 & 31. 
become 
