Apr. IS, 1915 



Disinfection of Hides 



83 



TablS X. — Germicidal efficiency of hydrochloric acid plus sodium chlorid and mercuric 



chlorid, with and without formic acid, and with acetic acid, by the rod method, without 

 addition of organic matter <^ 



EXPERIMENT 2J 



EXPERIMENT 24<" 



Hydrochloric acid (i per cent)+sodium chlorid (5 per cent). . 

 Hydrochloric acid (2 per cent)+sodii]m chlorid (3 per cent). . 

 Hydrochloric acid (3 per cent)+sodium chlorid (5 per cent). . 

 Hydrochloric acid (4 per ccnt)+sodium chlorid (s per cent). . 

 Hydrochloric acid (5 per cent)+sodium chlorid (5 per cent).. 

 Hydrochloric acid (r per cent) + sodiuni chlorid (10 per cent). 

 Hydrochloric acid (2 per ccut) + sodium chlorid (10 per cent). 

 Hydrochloric acid (3 per cent)+sodium chlorid (10 per cent). 

 Hydrochloric acid (4 per cent)+sodium chlorid (10 per cent). 

 Hydrochloric acid (5 per cent) + sodium chlorid (10 per cent). 

 Hydrochloric acid (i per cent) + sodiuni chlorid (15 per cent). 

 Hydrochlo.ic acid (2 per cent) + sodiutn chlorid (15 per cent). 

 Hydrochloric acid (3 per ccnt) + sodium chlorid (15 per cent). 

 Hydrochloric acid (4 per cent) + sodium chlorid (13 per cent). 

 Hydrochloric acid (s per cent) + sodiiim chlorid (15 per cent). 

 Hydrochloric acid (i per cent) + sodium chlorid (20 per cent). 

 Hydrochloric acid (2 per ceut) + sodium chlorid (20 per cent). 

 Hydrochloric acid (3 per cent) + sodium chlorid (20 per cent). 

 Hydrochloric acid (4 per cent) + sodium chlorid (20 per cent). 

 Hydrochloric acid (3 per cent) + sodium chlorid (20 per cent). 



Mercuric chlorid ( i : 500) alone 



Mercuric chlorid ( 1.1,000) + acetic acid (i per cent) . . . . ; 



Mercuric chlorid (i:2,ooo) + acetic acid (r per cent) 



Mercuric chlorid (1:3, 000) + acetic acid (i per cent) 



Mercuric chlorid (i:i,ooo) + fonnic acid (i per cent) 



Mercuric chlorid (i:2,ooo)+formic acid (i per cent) 



Mercuric chlorid (1:3, 000) + formic acid (i per cent) 



Control rod 



EXPERIMENT 25 c 



Hydrochloric acid (i per cent)+sodiuin chlorid (10 per cent). 

 Hydrochloric acid (2 per cent) + sodiuni chlorid (10 per cent). 

 Hydrochloric acid (3 per cent) + sodium chlorid (10 per cent). 

 Hydr9chloric acid (4 per cent) + sodium chlorid (to per cent). 

 Hydrochloric acid (5 per cent) + sodiuni chlorid (10 per cent). 

 Hydrochloric acid (i per cent) + sodiuin chlorid (15 per cent). 

 Hydrochloric acid (2 per cent) + sodiuin chlorid (i.^; per cent). 

 Hydrochloric acid (3 per cent) + sodiuin chlorid (15 per cent). 

 Hydrochloric acid (4 per cent) + sodiuin chlorid (15 per cent). 

 Hydrochloric acid (s per cent) + sodium chlorid (15 per cent). 

 Hydrochloric acid (i per cent) + .sodium chlorid (20 per cent). 

 Hydrochloric acid (2 per cent) + sodiuni chlorid (20 per cent). 

 Hydrochloric acid (3 per cent) + sodium chlorid (20 per cent). 

 Hydrochloric acid (4 per ceut) + sodiutn chlorid (20 per cent). 



o Percenta.ce of hydrochloric acid means percentace of absolute hydrochloric aad. 



* Not exposed. 



c The quantity of disinfectant used (10 c. c.) included i c. c. of defibrmated blood. 



