DISINFECTION 361 



in contact with the soil of yards or fields. It should be re- 

 membered that the pathogenic organisms do not find condi- 

 tions for growth in the soil, and lienee their destruction is 

 only a question of time, and with all except the spore-form- 

 ing bacteria the time will be relatively short. Burning 

 over a pasture may be resorted t<> in order to get rid of 

 vegetable growth and give a better chance for sunlight to 

 exert its influence. 



