[ 546 ] 
every two hours a powder of magnef. alb. terr.fol . 
tartar, tart, vitriol, ana ?j. ol. fine, moj'ch. gutt. j. 
with a draught of th e J'ucc. Union. & J'al. abfmth. But 
in the middle of the night, and all day (the 7th), the 
had an abundant difeharge of loofe bilious ftools. 
She had continued free from exceffive pain fince the 
morning of the former day, only now and then com- 
plained of uneafmefs fometimes in one, fometimes in 
another, part of her bowels. About twenty-four 
hours after her firft feizure, the felt a great pain 
ftriking towards the bottom of her back, and one 
hour after voided the extraordinary calculus , of which 
the figure and defeription are fubjoined. Some time 
after pieces of fkins were voided by ffool, which 
were evidently of the texture and appearance of 
the internal villouS coat of the inteftines and gall- 
bladder. The above medicines were the only ones 
Ihe ufed, by my direction, under her painful com- 
plaint, excepting an external fomentation, and bleed- 
ing, which the hardnefs and contra&ednefs of her 
pulfe feemed to require. She was ordered to drink 
plentifully of thin broths, and other foft diluent liquors. 
During the courfe of her diforder fhe had no appear- 
ance of jaundice, nor fince; and, confidering her years, 
enjoys at prefent (Sept. 1757) very good health. 
This calculus , as appears by the figure, was of a 
pyriform fhape, refembling the form of the cyflis 
fellca itfelf. Its furface was quite fmooth and polifh- 
ed, excepting towards the bafe, at that part marked 
A, where it was fcabrous, as if fome other fubftance 
had lain contiguous to it. When broken through, 
it was compofed of concentrical laminae, which were 
alternately white and ochre-coloured. In length it 
meafured 
