ACTION OF SALTS. 193 
Active. Failed. 
Biniodide of mercury.........0e-ceee cee eeeees 1.20000 1: 40000 
Bichloride ..........00..005 Jepad octet saasls 1: 15000 1: 20000 
Protiodid@sic ic cece vee ioiace 42a3t.esnanes 1.10000 1 : 20000 
Yellow’ oxid@isss cssaaevassseseevess saevsnes 1: 1000 1: 2000 
Black: Oxide... al aciead See. se nceee yess FARES 1: 5v0 1- 1000 
Morphia Hydrochlorate.—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 
13 
