CHAPTER THE ST. JOHN'S RIVER. THIS famous river, from its mouth to its head-waters in the far-off regions of Southern Florida, is purely tropical; its waters, shores, scenery, vegetation, all animate objects, the birds in the air and on the water, the fish and reptiles within its depths, are mostly strange, attractive, and in- tensely interesting, especially to the Northern traveler. It is the only really tropical stream in the United States navi- gable its entire length, and is different from all others in that it reverses the usual order of the water-courses of America and flows due north. A sluggish, slow current, its entire length lies parallel with, and is only separated by a narrow belt of land from, the Atlantic Ocean, into which it empties at a point eighteen miles east of Jacksonville, close to the Georgia State line. From its source to its mouth it embraces three varieties of streams, each entirely distinct in form, width, depth, scenery, shores, soils, and vegetation; and these strange transf river, rivers point miles, width bluffs ormations not only add greatly to the interest of the but relieve it of the monotony characteristic of long . The first stretch of the river, from its mouth to a shortly above Welaka, a total distance of ninety-seven is a vast lagoon, averaging from one to six miles in , deep, with a slow current, the shores a series of bold and declivities, everywhere covered with extensive Y forests of great live-oaks, sweet-gums, cypresses, willows, and occasional magnolias. These forests tower up grandly,