VOL. XLIV.] PHILOSOPHICAL TRANSACTIONS. 289 



full of lukewarm water into the bladder ; which occasioned a protuberance not 

 immediately above the pubis, but 3 or 4 fingers breadth higher ; which plainly 

 proved, that the stone took up the whole exterior and inferior region of the 

 bladder. He opened the teguments, and pushed his instrument into the bladder 

 close to the pubis : but finding there only one membrane and the stone, he was 

 obliged to bring the edge of his knife upwards, and then the instrument really 

 entered, and abundance of water and urine came forth. 



He turned again his instrument, to support the bladder with the projecting 

 part, which is on the back of it. He slipped over it the straight suspensor (a ca- 

 theter that opens with a bow), and dilated the bladder with the incision-knife, 

 towards the pubis, and introduced the lateral suspensors. He put his finger into 

 the bladder, and having felt a stone which was above the first, he pulled out 

 this upper stone with the forceps, which broke between the lateral suspensors. 

 He put his finger in again, and felt another ; which he took hold of, and pulled 

 out, taking it for a third stone, though it was but a fi*agment of the first, which 

 had escaped the forceps. 



This fragment being taken out, he put his finger in again, and felt distinctly 

 that the bladder was parted into two chambers, like a gourd. In the upper hin- 

 dermost chamber, which he had opened, the injection was lodged, and the stone 

 which he had taken out. In the lower chamber he felt the great stone, which 

 went as far as the neck of the bladder, the top of which was surrounded by the 

 bladder like a neck, the opening of which did not admit more than the tip of a 

 finger, with which he felt that the partitions of the bladder were closely united, 

 and adhered to the surface of this stone. 



These melancholy discoveries made him very uneasy ; this particular structure 

 of the side of the bottom of the bladder making him sensible of the same impos- 

 sibility of introducing his instruments, which he had met with towards the peri- 

 naeum. He tried to thrust his finger by force between the stone and the bladder 

 by setting the nail strongly against the stone, and loosening the bladder fi-om it, 

 which seemed to adhere to it, dilating at the same time the bladder with all the 

 force his finger was capable of. ' He at last introduced his finger to a certain 

 'length, with which he loosened the adherent parts from the stone all along, as 

 far as his finger could reach , then he tried to pass in the forceps, afterwards the 

 different scoops, but all in vain. He was for an instant believing that he could 

 not get it out. This fiightful idea made him redouble his endeavours. 



He began to dilate again with the forefinger of his left hand, and, with the 

 iame finger, and the thumb of his right hand in the anus, he violently thrust 

 the stone upwards towards the belly, after a long and painftil labour, both for 

 the patient and the operator. He introduced on his finger, which was between 

 the stone and the bladder, the small scoop of the double crochet quite beyond . 



