OPERATION OF RISOPONTRYPY. 367 



slight start that the patient gave ; on withdrawing 

 the instrument, it was very slightly tinged with 

 blood. I applied a little cotton wool with chlo- 

 roform a slight distance within the cavity, and 

 dismissed the patient until the next day. 



He did not come near me for three days ; he 

 had been much engaged, and said that all pain in 

 the tooth had ceased the day following the ope- 

 ration, and that he now could use the tooth as 

 well as any he had in his mouth. 



By great persuasion I got him to call on me 

 every other day for three weeks, to apply fresh 

 cotton, saturated with tanate of lead. At the ex- 

 piration of that time there was no discharge on 

 the cotton or uneasiness in the tooth. I now 

 filled with Hill's stopping, to about half the 

 length of the cavity, and sent him away for two 

 months, providing no pain supervened. I did not 

 see him again until the end of November. He 

 had been to Melbourne, and was on his return, 

 and had merely called in to express how grati- 

 fied he was at the result. He was very loath to 

 allow me to remove the gutta-percha stopping ; 

 however, he did. I cautiously introduced a drill 

 into the cavity, which came in contact with solid 

 substance, without producing the slightest un- 

 easiness on pressure, clearly indicating the pulp 

 had calcified. After introducing a non-conductor, 

 I filled the cavity with adhesive gold. 



June 2nd, 1860. — I again saw the patient ; he 



