DESTRUCTION OF BACTERIA BY CHEMICALS. 167 
Thymol and eucalyptol have about one-fourth the 
strength of carbolic acid (Behring). 
Oil of peppermint in 1 to 100 solution prevents ,the 
growth of bacteria. 
TABLE OF 
Alum Fi : 21 
Aluminium acetate . ool 
Ammonium chloride . 1 
Boricacid . % ‘ 1 
Calcium chloride 1 
. Calcium hypochlorite 1 
Carbolic acid. ey Ca 
Chloral hydrate . 1 
Cupric sulphate . ‘ eo 
Ferrous sulphate wed 
Formaldehyde (40 per cent.) 1 
Hydrogen peroxide 1 
ANTISEPTIC VALUES.! 
2 222 Mercuric chloride é 
: 6000 Mercuric iodide . 
29 Potassium bromide . 
2143 Potassium iodide é 
2 25 Potassium permanganate . 
: 1000 Pure formaldehyde . 
2 338 Quinin sulphate . 
2107 Silver nitrate : 
: 2000 Sodium borate 
: 200 Sodium chloride . 
: 10000 | Zine chloride 
: 20000 | Zine sulphate 
1: 
1: 
:10 
:10 
: 300 
: 25000 
: 800 
: 12500 
214 
Ce el oe el oe 
14300 
40000 
1 These figures are approximately correct, and represent the percentage of 
disinfectant required to be added to a fluid containing considerable organic 
material, in order to permanently inhibit any bacterial growth. 
