Last week I detailed how the arsenic-laced pesticide, Paris Green, came into general use more than a century ago, mainly to combat the Colorado potato beetle. I was led to this topic by a fascinating paper presented to the Western History Association by Professor Lynn Ellen Bennett, of Utah Valley University. I determined that here in North Dakota, sale of Paris Green was handled, under state regulation, by drugstores. I intimated, too, there would be more to say about the deadly effects of this