An entry from The New Garden Encylopedia, copyright 1936 through 1946, gives recommendations for using arsenical poisons in your garden:
My father always said anybody who talks fondly of The Good Old Days wasn’t alive back then. He was and thought things had definitely improved since then.
Words to live by.
The Smell of Molten Projects in the Morning 
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2 responses to “The Good Old Days Weren’t: Arsenical Poisons”
In those days it was easier for a wife to eliminate an undesirable husband and make it look like an accident.
Not to mention inadvertently killing yourself along with the critters out there …