TO DISINFECT ROOMS.
The disinfection of a room is not complete unless the walls have been
thoroughly cleansed. If they are papered, the paper must be removed
and the surface beneath carefully scraped and washed. If the walls are
painted, they should be washed with caustic soda. The ceiling should
also be subjected to a similar treatment.
* * * * *
Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 9 / 213 题