DISINFECTION 219 
as a bactericide is ten times as powerful as carbolic acid ; 
and, unlike the latter or creosote, 10 per cent. solutions 
do not irritate the skin or the mucous membranes. 
Creolin is a coal-tar product saponified with resin and 
alkalies, and mixed with forty or more parts of water 
forms an opaque or milky emulsion. Used with ordinary 
care it is not poisonous even for dogs, and, to my mind, 
besides being the cheapest is one of the most useful and 
pleasant general disinfectants that can be employed. 
Potassium permanganate is an efficient though not in- 
expensive agent for swilling yards and flushing drains, 
etc. in the strength of 1 to 50 or 100 of water. It 
is a good deodorant and fairly effectual in the 
destruction of bacteria, although not so potent as the 
previously mentioned agents. Sanitas Fluid has an 
agreeable aromatic odour, is soluble in water, non-toxic, 
non-corrosive, and largely used in hospitals and by 
medical officers of health. In commerce the activity of 
Sanitas compounds is due to the formation of ozone, by 
the slow oxidation of the resin, camphor, and thymol 
they contain. In 5 to to per cent. solution, Sanitas is 
recommended as a valuable disinfectant and deodorant 
for use in dog kennels, and the Sanitas powder and saw- 
dust are used with good effect, sprinkled upon the floor. 
Chlorinated lime is a most useful agent, and may be used 
either dry or in 1 to 5 per cent. solution. 
There are many other preparations suitable for the 
purposes indicated in this paragraph, among the best 
being Kresophen, Fecto (contains free chlorine), form- 
aldehyde solution, Izal, etc. 
How to Disinfect a Kennel Effectually.—The disinfec- 
tion of a kennel must be systematically carried out as 
follows if reliable results are desired: First brush down 
any cobwebs and dried loose whitewash, then thoroughly 
sweep away any débris and every particle of litter and 
sawdust, which must be gathered up and burned. All 
removable parts, such as the bench or dais, drinking 
troughs, etc, should be scraped and scrubbed. with 
