... arsenic and dropped along their runways will not finish them. In this case I can only refer her to other said-to-be cures that other people have tried and have faith in. A dozen witnesses testify that the seeds of Ricinus (Castor Bean,) dropped here and there in their tunnels will make them leave. A Connecticut lady says a sure remedy is to drop handfuls of salt here and there in their runways. Others put ball potash or concentrated lye in their runs but that is cruel, for it ... — The Mayflower, January, 1905 • Various