We at Special Collections were a little concerned when we came across this photograph while processing an agriculture collection. It depicts "war-famed DDT bug bomb for civilians." Published in 1962 Silent Spring, by American biologist Rachel Carson, warned of the environmental and human health concerns associated with the indiscriminate spraying DDT. The book suggested that DDT and other pesticides potentially caused cancer and were detrimental to wildlife. The particular canister in this photograph "is said to contain enough insecticide to debug several average-size homes." Perhaps a case of overkill?