Scarcely had they begun active work when an outbreak of yellow fever occurred which caused such a panic throughout their force that nothing except the lack of steamship accommodation prevented the flight of the entire body from the Isthmus.

Prompt, intelligent and vigorous application of the remedies shown to be effective by the mosquito discoveries not only checked the progress of the pest, but banished it forever from the Isthmus.

In this way, and in this alone, was the building of the canal made possible.

The supreme credit for its construction therefore belongs to the brave men, surgeons of the United States Army, who by their high devotion to duty and to humanity risked their lives in Havana in 1900-1901 to demonstrate the truth of the mosquito theory."(7) (7) Bishop: The French at Panama, Scribner's Magazine, January, 1913, p.

42.
One disease has still a special claim upon the public in this country.
Some fourteen or fifteen years ago, in an address on the problem of typhoid fever in the United States, I contended that the question was no longer in the hands of the profession.