[ 2I + 3 
body, it can fcarcely be doubted, that it muft have 
the like effebt on it, when lodged in the bladder. 
And that the didolution of the done in the bladder 
has been completed by foap alone, appeared evidently 
in the cafe of the Rev. Mr. Matthew Simfon, Minider 
of Pancaitland near Edinburgh ; an account of 
which will foon be made public (6) by Dr. Audin, 
who opened his body after death. Mr. Simfon had, 
from 1730, been afflicted in a lefs or greater de- 
gree with the fymptoms of a done in the bladder ; 
and in November 1735 was founded by Dr. Drum- 
mond of Perth, and Mr. Balderdon, furgeon in this 
city, by whom a done was not only plainly felt, but 
alfo by the patient himfelf. In February 1737 he 
began to take foap j and after 1743 never had any 
gravelifh fymptoms. He died in May 1756 ; and, 
when his bladder was looked into, there was neither 
done nor gravel found in it. 
4. It appears from Lord Walpole’s cafe, that foap 
and lime-water, even when taken in large quantities, 
proceed very dowly in didolving the done. 
From July 1748, to the beginning of 1757, his 
Lorddiip drank three Englifh pints of lime-water, 
and fwal low’d for the mod part an ounce of foap, 
daily; except from April 1750 to June 1751, during 
which time he took only one pint of lime-water, 
and one-third part of an ounce of foap, daily. How- 
ever fpeedily foap and lime-water may did'olve the 
greated part of urinary dones out of the body, yet 
(6) It is printed in this volume of the Philofoph. Tranfa&ions, 
under the 28th of April, p. 221, & feqq. 
being 
