STERILIZATION BY ANTISEPTICS 27 



[Wright adds a trace (0*5 per cent.) of carbolic acid to his vaccines.] 

 4. Antiseptics are sometimes used to sterilize a culture when the products 

 of micro-organisms are under investigation. Volatile antiseptics such as 

 chloroform, ether, toluol, essence of garlic or mustard, etc., which can be 

 readily driven off afterwards by evaporation, are the most useful in this 

 connexion. 



