Note 1 — Front matter

The young man's peculiar physical condition is not as fantastic and unprecedented as one might at first believe. Everyone has had the experience of meeting a person who makes almost no impression whatsoever on them. People with such anemia of the personality are constantly being forgotten, overlooked even by friends who know them well. Their presence in a room will be unobserved for several minutes and, frequently, such people will be completely ignored, even when they are sitting or standing in plain view. In nature, the chameleon has similar properties but for a definite reason, namely that of defense against its stronger enemies. The chameleon blends perfectly into the brown and green foliage of its native habitat and even the marvelously keen eyes of its natural enemies are unable to detect its presence. It is not impossible to conceive that the same camouflaging property could develop in a human being. Nature might appreciate the difficulty of a retiring, sensitive person to mingle with his more vivid fellow creatures, and so clothe him with a defensive armor of practical invisibility to insulate him against the attacks of those with stronger personalities. Readers of Fantastic Adventures will remember John York Cabot's classic, "The Man the World Forgot," as an exposition of this theme. Unexplained instances of men and women "disappearing" from normal environments might be simply cases of submerged personalities which did not "disappear" but were simply and tragically forgotten.—Ed.