"Is there any cure for hay fever?" asked a patient once of Dr. Oliver Wendell Holmes.
"Yes," he answered. "Gravel . . . taken about eight feet deep."
Today, although physicians know little more about hay fever than Dr. Holmes did, their attitude is more optimistic. To them the disease which annually sets 6,000,000 U. S. victims gasping is a common form of allergy: a bodily sensitivity to certain foreign substances such as eggs, milk, wheat, horsehair, pollen grains, banana oil. Once these substances get into the bloodstream of sensitive people, there ensue such...