Persistence of Benzene Hexachloride as an Insecticide on Lime-washed Surfaces

Abstract

HITHERTO, benzene hexachloride has not been recommended for use on lime-washed surfaces, because it decomposes in lime slurry; it does not do so in slurries of chalk or ground limestone. Thus there was reason for believing that exposure to air would eventually make a freshly lime-washed surface suitable for spraying and, as the problem was of practical importance, the following experiment was made to settle the matter.