42 Professor Halford. 



equal quantity was injected. This was followed by 

 exactly the same symptoms, only a little more violent. 

 In another five minutes the dog micturated, the urine 

 smelling strongly of the acid, and shortly afterwards, 

 ran about as usual. 



EXPERIMENT II. 



October 15. A very small dog was taken, in order 

 to see whether the symptoms described yesterday were 

 due to the carbolic acid or to the glycerine. Twenty- 

 five (xxv) minims of pure glycerine were injected. No 

 effect whatever produced. Ten minutes after this, I 

 injected another m. xx of the carbolic solution into the 

 same vein. The same cionic spasms returned in exactly 

 the same time, and of the same character as those 

 of the dog experimented upon yesterday, and passed 

 away as rapidly. There could be no doubt that the 

 symptoms were due to the injection of the acid into 

 the blood. 



EXPERIMENT III. 



October 16, 1869. The same small .dog as yesterday 

 was injected with m. xx of the following mixture : 



Carbolic Acid - 3 parts. 



Water - 1 



Glycerine - - 4 



So that m. xx equalled 7*5 grains of pure carbolic 

 acid. 



Result, Within a second or two, the same cionic 

 spasms commenced and continued without intermission 

 for a quarter of an hour, after which they gradually 



