113, is reported a case of sudden canities due to business-worry.

The microscope showed a great many air-vesicles both in the medullary substance and between the medullary and cortical substance.
"In the Boston Medical and Surgical Journal, 1851, is reported a case of a man thirty years old, whose hair 'was scared' white in a day by a grizzly bear.

He was sick in a mining camp, was left alone, and fell asleep.

On waking he found a grizzly bear standing over him.
"A second case is that of a man of twenty-three years who was gambling in California.

He placed his entire savings of $1100 on the turn of a card.