, { 213 
apple (y) would, pafs thro' the ureters without beine 
felt. Now it this fmall ftone, found in the urethra , was 
partly diifolved by the virtue of the foap and lime- 
water ; it will appear at kail probable, that the two 
larger ltones in the bladder were fo likewife. But 
altho’ Lord Walpole’s calculous concretions had re- 
mained undiminifhed, and without any fymptoms of 
diffolution ; it would not therefore follow, that foap, 
and lime-water cannot diifolve the ftone in other pa- 
tients, where die concretion may be of a lefs firm 
texture. 
The Revk Dr. Richard Newcome, now Lord Bi- 
fhop of Llandaff, while drinking two Englifh quarts 
of lime-water daily, for the cure of the hone in his 
bladder, poured his urine every morning and evening 
upon a piece of human calculus weighing 31 grains 5 
by which, in the fpace of four months, it was re- 
duced to three pieces, weighing in all only fix grains.. 
Upon one of thefe pieces, weighing 2.31 grains, lie 
caufed to be daily poured, for two months, the frefh 
urine of a perfon, who drank no lime-water; at the 
end of which time the piece of calculus was found 
to weigh 2.y6 grains, having increaled in weight a 
quarter of a grain. This fame piece being afterwards 
fteeped in the bifhop’s urine (who continued to drink 
lime-water as above), from June 24-th to July 9th, 
was in thefe few days quite crumbled into powder. 
Since this- experiment fhews, beyond difpute, that 
lime-water, unaffifted by foap, can communicate to. 
the urine a power of difl'olving the ftone out of the. 
(5) The ftone found in the beginning of the paflage from the 
bladder was of this fize, and weighed about a grain. 
body,. 
