Gen. George A. McCall, Letters from the Frontiers. (Lippincott & Co., Philadelphia, 1868.) These letters are mostly from Florida, and contain many interesting pictures of army life and natural scenery there.

R. M. Bache, The Young Wrecker of the Florida Reef. (Claxton, Remsen & Haffelfinger, Philadelphia, 1869.) This is a “book for boys,” and is interesting for all ages. The author was engaged on the Coast Survey, and describes with great power and accuracy the animal and vegetable life of the Southern coast.

Life of Audubon. (Putnam & Son, 1869.) This contains a number of letters of the great ornithologist while in Florida.

A detailed description of the earlier works on the peninsula can be found in a small work I published some years ago, entitled “The Floridian Peninsula, Its Literary History, Indian Tribes, and Antiquities.” (For sale by the publishers of the present book.)

On the Antiquities of the Peninsula. Prof. Jeffries Wyman, of Harvard College, published, not long since, a very excellent article in the second volume of the American Naturalist.

Every tourist should provide himself with a good State map of Florida. The best extant is that prepared and published by Columbus Drew, of Jacksonville, Florida, in covers, for sale by the publishers of this work. Two very complete partial maps have been issued by the U. S. government, the one from the bureau of the Secretary of War, in 1856, entitled, “A Military Map of the Peninsula of Florida South of Tampa Bay,” on a scale of 1 to 400,000, the other from the U. S. Coast Survey office in 1864, drawn by Mr. H. Lindenkohl, embracing East Florida north of the 29th degree, on a scale of 10 miles to the inch. The latter should be procured by any one who wishes to depart from the usual routes of tourists.

3. PHYSICAL GEOGRAPHY OF FLORIDA.

1. Geological Formation.

Florida is a peninsula extending abruptly from the mainland of the continent in a direction a little east of south. It is nearly 400 miles in length, and has an average width of 130 miles. Its formation is peculiar. Every other large peninsula in the world owes its existence to a central mountain chain, which affords a stubborn resistance to the waves. Florida has no such elevation, and mainly a loose, low, sandy soil. Let us study this puzzle.