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To the Editor:
—On a hot day, last July, without taking any precautions against my old enemy, poison-oak (Rhus toxicodendron), I climbed up a steep trail which was overgrown by tall briers and poison-oak bearing green leaves. The trail had fallen into disuse, and the wild growth obscured the path and at times reached above my head. I had to crowd my way through it, sometimes crawl under it, and constantly brush it aside. Finally, I lay down in the brush at the top of the cliff for about one hour surrounded by the poisonous leaves. Naturally, the poison-oak came into direct contact with my hands, wrists and face. I was well aware of my danger, but had no means to protect myself save that I avoided rubbing my face with my hands.After an hour I walked a mile to my automobile and then drove 4 miles to the
von Adelung E. A FIELD EXPERIMENT ON POISONOAK PREVENTION. JAMA. 1917;LXIX(12):1023-1024. doi:10.1001/jama.1917.02590390073030