Cincinnati, Aug. 28, 1906.
To the Editor:
—A year ago, while suffering from hay fever, I was poisoned with ivy. Though in the midst of the season the hay fever disappeared immediately on the advent of the ivy poisoning and gave me no further trouble that year. Was this a coincidence or a consequence? If the latter, why? Have any more of your numerous readers made the same observation?Pollantin in hay fever has given me no relief.