24'i PHILOSOPHICAL TRANSACTIONS. [aNNO J73S. 



other symptoms not discontinuing, he died on the 28th. The stone was taken 

 out 4 hours after his death. 



Concerning the abovementioned Stone, By Sir Han^ Sloane, Bart. Pr. R. S. 



N" 450, p. 374. 



The abovementioned stone is so singular, that among some hundreds of those 

 in the possession of Sir Hans Sloane, he had none that came near it. 



Once indeed he had under his care a gentleman between 6o and 70 years of 

 age, who had extraordinary difficulties in making water, and an inconveniency 

 even beyond that ; which was, that he could not sit in an ordinary chair with- 

 out suffering extremely in the region of the peritonaeum. With the help of 

 lenient soft medicines and waters, he voided by the urethra a stone, which was 

 flat in the middle, and smooth, but had five points, resembling the rowel of 

 a spur. The points of the rays were sharp, but there were no asperities or 

 crystallizations on their surfaces. It was small, so as after many days to pass 

 along the urethra : but if it had not passed through the neck of the bladder, 

 but remained in the bladder, it would, in all probability, have attracted matter 

 to all the points or rays, and increased in all dimensions. 



It is very common, that when any extraneous solid substance gets into the 

 bladder, there is either attracted to it, or adheres to and surrounds it, a tartare- 

 ous calculous concretion, which assumes the figure of the said body then in its 

 centre, as a nucleus. 



There was a soldier cut in St. Thomas's Hospital, London, for the stone, 

 which, when taken out, was found to cover a musquet-bullet, that had been 

 shot into his bladder, where it was covered by a calculous concretion. 



Sir Hans S. had a silver bodkin, which a gentlewoman used for her hair; and 

 thinking with it to thrust back a stone that was engaged in the neck of her 

 bladder, it slipped into it, and the calculous matter gathered on the larger end 

 into a stone of an oblong figure, and equal thickness, of half an inch all round 

 the bodkin. 



He had also a common pin, which by some means had got into the bladder 

 of a young woman, and was there coated all over by a calculous matter ; but 

 having occasioned a fistulous ulcer in her groin, it was discharged thence with 

 the matter of the fistula. 



It is in this manner that bezoars are formed : for he had the common East- 

 India bezoars, which are roundish, and had in their centres the seeds of a sort 

 of acacia, which had attracted, or was coated over by that substance, esteemed 

 a great cordial or alexipharmac ; while others are long, and were gathered in 



