Though the sufferer from ague seldom received very much sympathy at the time, but was considered a fair butt for genial ridicule and chaff, yet even there the trouble had its serious side. Through all those communities there stalked a well-known and dreaded spectre, the so-called "congestive chill," what is now known in technical language as the pernicious malarial paroxysm. These were like the three warnings of death in the old parable. You would probably survive the first and might never have another; but if you had your second, it was considered equivalent to a notice to quit the country promptly and without counting the cost. In my boyhood days in the Middle West, I can recall hearing old pioneers tell of little groups of one or more families moving out on to some particularly rich and virgin bottom-land and losing two or three or more members out of each family by congestive chills within the first year, and in some cases being driven in from the outpost and back to civilization by the fearful death-loss. A pall of dread hangs over the whole west coast of Africa. The factories and trading-posts are haunted by the ghosts of former agents and explorers who have died there. Some years ago one German company had the sinister record that of its hundreds of agents sent out to the Gold Coast under a three years' contract, not one had fulfilled the term! All had either died, or been invalided and returned home. It was malaria more than any other five influences combined that thwarted the French in their attempt to dig the Panama Canal and that made the Panama Railroad bear the ghastly stigma of having built its forty miles of track with a human body for every tie.