44 
TESTING OF ANTISEPTICS— 
If the substance belongs to the Cresol group, prepare 1 per cent, 2 per cent, 3 per 
cent, 5 per cent, 7 per cent, 9 per cent, 10 per cent solutions of the substance in a 
set of bouillon tubes. 
If the substance belongs to the metallic salts, make Jirinij 2 Woj twoj 2 To? 
solutions in a set of bouillon tubes. 
Inoculate with : 
а. Decomposing urine. 
б. Sewage. 
c. Garden earth. 
d. Typhoid. 
e. Pus cocci. 
f. Anthrax spores, etc. 
Incubate and make report on the following plan : 
Name of substance. — Strength of 
solution. 
Minutes. 
1. 
2. 
3. 
5. 
10. 
15. 
20. 
30. 
Sewage 
G-arden earth 
'Deer»Tnpr>sing' nrine 
+ 

— means no growth, -r means growth. 
