Show t 1 t 4 i J lL s r I 1 t Typhus Preventive 1 The army's typhus preventive DDT promises to be the most effective effective tive general insecticide found to date dater First zed ed in Euro Europe Europ in 1574 DDT vas was proposed as ns an insecticide insecticide insecticide in in- in 1910 by a Swiss concern cong concern con con- cern g y md and Company Early last year it became the subject o of intensive study by the U U. U S. S department department depart ment of agriculture Published results results results re re- of this work and actual experience ence indicate that DDT will have a reaching far-reaching effect in the control of oi household pests agricultural enemies enemies enemies ene ene- mies and spreading disease inse insects insect |