ACTION OF SALTS. 189 



Morphia Htjdrochlorate. Antiseptic in. the proportion of 1 : 13 

 (Miquel). 



Nickel Sulphate. Antiseptic in the proportion of 1 : 400 (Mi- 

 quel). 



Platinum Bichloride. Antiseptic in the proportion of 1 : 3,333 

 (Miquel). 



Potassium Acetate. A saturated solution of this salt failed to 

 kill anthrax spores in ten days (Koch). 



Potassium Arsenite. In the writer's experiments Fowler's solu- 

 tion failed to kill micrococci in two hours in the proportion of four 

 per cent. Miquel places the antiseptic value of potassium arsenite 

 at 1 : 8. 



Potassium Bichromate. A five-per-cent solution failed in two 

 days to destroy anthrax spores (Koch). Efficient as an antiseptic in 

 the proportion of 1 : 909 (Miquel). 



Potassium Bromide. The bacillus of typhoid fever and the 

 cholera spirillum fail to grow in culture solutions containing 9 to 

 10.6 per cent, and are killed in four or five hours by ten to twelve 

 per cent (Kitasato). 



Potassium Carbonate. The development of the typhoid bacil- 

 lus and of the cholera spirillum is prevented by 0.74 to 0.81 per 

 cent, and these bacteria are killed in five hours by 1 per cent (Kita- 

 sato). 



Potassium Chlorate. In the writer's experiments a four-per- 

 cent solution failed in two hours to kill Micrococcus Pasteuri. A 

 five-per-cent solution failed in six days to destroy anthrax spores 

 (Koch). 



Potassium Chromate. A five-per-cent solution failed to kill 

 anthrax spores in five days (Koch). 



Potassium Cyanide. Antiseptic in the proportion of 1 : 909 

 (Miquel). 



Potassium Iodide. A solution of five per cent does not destroy 

 anthrax spores in eighty days (Koch). Putrefactive bacteria in 

 broken-down beef infusion are not destroyed by two hours' exposure 

 in a twenty-per-cent solution (Sternberg). The typhoid bacillus and 

 the cholera spirillum do not grow in culture solutions containing 



