16 "WOUND TREATMENT 



1. EEQUIEING STRONG DISINFECTANTS: 



Anthrax spores 

 Tetanus spores 

 Tubercle baoiUi 

 Blackleg spores 

 Eabies virus 



2. EEQUIEING WEAKEE DISINrECTANTS: 



Glanders bacilli 



Hemorrliagie septicemia bacilli 



Abortion bacilli 



Eoot-and-mouth disease virus, and other bacilli 



Pus organisms (Staphylococci and Streptococci) oc- 

 cupy an intermediate position. They are more resistant 

 than other vegetative forms hut less so than spores. 

 They, however, require strong disinfectants. 



2. Temperatuee. — The higher the temperature the 

 greater is the disinfectant property of a given chemical. 

 Practical application of this is made by having the 

 solution of disinfectants as warm as possible when in 

 use. 



3. CoNCENTEATiON. — The Stronger the concentration 

 the more effective is the" germicidal action. Creolin, 

 however, is an exception to this rule that concentrations 

 where emulsification is complete (two to three per cent) 

 are most efficient. Concentrations of ten to twenty per 

 cent are not relatively as efficient because a great per- 

 centage of the creolin is not emulsified and hence not 

 entirely effective. Stated in other words, up to con- 

 centrations where emulsification is complete, the disin- 

 fection coefficient varies directly as concentration, but in 

 higher concentration the ratio of increase is smaller — '■ 

 that is, a twenty-per-cent solution has not ten times the 

 disinfectant properties of a two-per-cent solution. 



4. Duration op Action. — For action, a certain lapse 

 of time. is necessary, which varies with the individual 

 antiseptic on the one hand and the type of organism 

 on the other. With some disinfectants the action on 



