ESSENTIAL OILS, ETC. 203 



been salted for a month and then smoked for fourteen days may still 

 contain the bacillus of rothlauf in a living condition, as shown by in- 

 oculation experiments. It was not until about six months after smok- 

 ing that the bacillus failed to give evidence of vitality. 



Thymol. A five-per-cent solution in alcohol does not destroy 

 anthrax spores in fifteen days, but the development of these spores 

 is retarded by a solution of 1 : 80,000 (Koch). The anthrax bacillus 

 and staphylococci fail to grow in culture media containing 1 : 3,000 

 (Samter). The tubercle bacillus is destroyed by contact with thy- 

 mol for three hours (Yersin). Thymol has about four times less 

 germicidal power than carbolic acid (Behring). Antiseptic in the 

 proportion of 1 : 1,340 (Miquel). 



Tobacco Smoke. Tassinari found that tobacco smoke restrains 

 the development of bacteria, and that certain species failed to de- 

 velop after exposure for half an hour in an atmosphere of tobacco 

 smoke spirillum of cholera and Friedlander's bacillus. 



