DISINFECTION

means the destruction of the infection which spreads disease. The infection consists of a living germ. These germs are low forms pl mes life allied to moulds. We know how a damp dark cellar with little or no ventilation is the best place for any object to become mouldy. It is clear that sunlight set fresh pedir gold amare ny is not surprising that they are fo experimen: destroy germs aa This is Nature’s method. This: method has been supplemented by two artificial methods; (1) heat, (2) chemicals. Heat eine and lth for sterilising instruments, dre ings, i clothing. Fur and leather are much damaged by heat and are better: disinfected by chemicals (formalin). Heat can be: applied in the form of hot, dry air or as steam. The latter is far more efficient, becauso the steam when it condenses gives out so much heat, To prevent exce ive condensation, with the resulting saturation of the goods te be disinfected, the steam is applied under pre ure in ® [s. 353]