No.	Title	Date
461	Letterhead stationery of the Everglades National Park Commission	circa 1950s
462	Letters	1911
463	Letters : to Minnie Moore-Willson	1918
464	Letters from O. A. Hardin describing Southern Drainage District plans for levees, dikes and canals	1918
465	Letters to Bernard MacFadden	1933
466	Letters to Paul C. Taylor, regarding timber contracts	1934
467	Literature Review on the Effects of Groundwater Drawdowns on Isolated Wetlands	1995-11
468	Litterfall in Pinelands of Everglades National Park	1985-03
469	Little Banana Patch & Shark River Headwaters (Stops XVII & XIX) ( 23 photograph sets )
470	Little Shark River (Stops 81-XXVI) ( 17 photograph sets )
471	Loaxahatchee Impoundment Landscape Assessment (LILA): Tree Island Experiments and Management; May 1, 2005 to September 4, 2009: Final Report	2009-08-17
472	Logging in the Everglades, ca. 1908-1910.	1910
473	Looking east	1904/1920
474	Looking East	1904/1920
475	Macro Invertebrate Responses to Phosphorus Enrichment in the Northern (WCA-2A) Everglades	2001-03
476	Mahogany Hammock (Stop 81-VI) ( 12 photograph sets )
477	Map made for the U.S. Coast and Geodetic Survey of Cape Sable : East Cape to Shark River, April 12, 1928	1928
478	Map of Florida	1910
479	Map of Florida 500,000 acres choice prairie farming lands in Florida.
480	Map of South Florida. 19--]