"And please tell us what jiggers are?"

"Its native name is chigoe," answered their guide, "and this has been anglicized into 'jigger.' Its scientific name is Pulex penetrans; it is a species of flea which deposits its eggs in the human body, especially under the skin of the foot or the nails of the toes. Its presence is indicated by a slight itching and subsequently by a membranous sac, like the head of a pin. This sac can be removed with a needle or by washing the feet with tobacco juice; if allowed to remain it causes an ulcer, and the victim will quite likely lose his toes. It is necessary to keep close watch to one's feet, and wash them frequently with strong soap or decoction of tobacco."

HILLS NEAR THE RAILWAY.

Natural history gave place to more immediate matters as the train passed one of the points where excavations for the canal were going on. The scene was a repetition of that at Gatun, and needs no special description, but it naturally led to further conversation upon the great enterprise which was intended to unite the Atlantic and Pacific oceans.

Fred asked how it happened that a canal through the Isthmus connecting North and South America was being constructed by Frenchmen and with French capital?