9 2 



Journal of Agricultural Research 



Vol. XX, No. 2 



Dakin 's solution to kill Staph, aureus than to kill B. pyocyaneus or B. 

 typhosus under like conditions. A comparison of the two disinfectants 

 shows that Dakin's solution is more effective than chloramin T against 

 B. pyocyaneus , while chloramin T is more effective than sodium hypo- 

 chlorite against Staph, aureus. 



Table V. — Comparative germicidal efficiency of chloramin T and Dakin's solution against 

 Staphylococcus aureus, Bacillus pyocyaneus, and B. typhosus, without addition of 

 blood serum l a 



EXPERIMENT 9 



EXPERIMENT 10 



Chloramin T: 



1 to 1,000 



1 to 10,000 



1 to 30,000 



1 to 50,000 



1 to 100,000 



Dakin 's solution : 



NaOCl 1 to 1,000. . 



NaOCl 1 to 10,000. 



NaOCl 1 to 30,000. 



NaOCl 1 to 50,000. 



NaOCl 1 to 100,000 



EXPERIMENT II 



Chloramin T: 



1 to 1,000 



1 to 10,000 



1 to 30,000 



1 to 50,000 



1 to 100,000 



Dakin's solution: 



NaOCl 1 to 1,000. . 



NaOCl 1 to 10,000. 



NaOCl 1 to 30,000. 



NaOCl 1 to 50,000. 



NaOCl 1 to 100,000 



+ 



+ 



a + signifies growth; — , no growth. 



