230 GERMICIDES AND ANTISEPTICS. 



reagent was dissolved by means of sodium bibo- 

 rate, which, by itself, in saturated solution, has no 

 germicide power. A two per cent solution was 

 found to destroy the micrococcus of pus and B. 

 termo in active growth ; 4 per cent failed to destroy 

 the bacteria in broken-down beef-tea (old stock). 

 In the proportion of 1 : 200, this solution prevented 

 the development of the micrococcus mentioned ; 

 in 1 : 800, that of B. termo; and the septic micro- 

 coccus in 1 : 400. But the antiseptic power exhib- 

 ited by these figures does not differ from that 

 obtained by the use of the solvent employed when 

 used alone. The virus of symptomatic anthrax is 

 destroyed by forty-eight hours' exposure to a solu- 

 tion of salicylic acid of 1 : 1,000, and by saturated 

 salicylic alcohol (Arloing, Cornevin, and Thomas). 

 Salicylic acid dissolved in oil and in alcohol, in 5 per 

 cent solution, does not destroy the spores of the 

 anthrax bacillus (Koch). 1 : 200 destroys the bac- 

 teria of sour milk (Molke). 1 : 343 killed the 

 bacteria of beef-tea, and 1 : 1,121 prevented the de- 

 velopment of bacteria in unboiled meat-infusion 

 exposed to the air (de la Croix). The bacteria 

 of tobacco-infusion were destroyed by 1 : 362, 

 and their multiplication prevented by 1 : 932 

 (Bucholz). 1 : 724 prevented the development 

 of bacteria in a vegetable infusion, and 1 : 1,000 

 in a solution of egg-albumen (Kiihn). 



Soda. Caustic soda destroys the virulence of 

 septicaemic blood in the proportion of 1 : 400 (S). 

 A one-in-five solution of soda destroys the virus 



