Field Notebook: Florida. 1911, 1912
Page 15
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
flat as a table with here and there shallow depressin justly formerly water ways in the salt marshes. One goes through the young pine forest but on getting near the sea shore, at Palos Beach, the palms begin to appear. They occupy the entire sea regions and the dunes along the border. In no place is there any accumulations of peat, not even in the shallow swamps. Where the ground is cut by the railway there is a thin humus layer, in nearly all cases but several inches thick. Then comes the white fine grained quartz sand seen on the beach of the sea. Where the railways has dry drainage ditches then may be an argilous layer of a few inches (or it is about) up to at least three feet seen. This lies beneath the white beach sand of several foot thickness. This silice layer is very local in character and is all drifted material. It consists almost entirely of silica with an occasional day Fulgur. The material is round broken and the edges rounded. The contact at the top with the sand is irregular and if an old rail bank might give one the impression of a time interval between them. At Grayforks there is a wide once or less salt water marsh through which the St. John's river flows