Medicine: Hay Fever

To its victims, hay fever is no laughing matter. Every summer, over 6,000,000 people in the U. S. are racked by its sneezes, blinded by its tears. For half the sufferers, the 15th of August, when ragweed fever begins, is their last sneezeless day till frost. Why the disease always strikes on August 15 is no nasal mystery, but merely another indication of Nature's regularity. As August 15 approaches, the shortening of daylight hours allows the ragweed plant precisely enough sunlight to ripen it on that day. And the number of hours...

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