No.	Title	Date
241	Landscape patterns of periphyton in the Florida Everglades	2011
242	Letter from J. E. Moseley	1921
243	Letter to Charles S. Walker regarding land sales, October 19, 1925
244	Letterhead stationery of the Everglades National Park Commission	circa 1950s
245	Letters from O. A. Hardin describing Southern Drainage District plans for levees, dikes and canals	1918
246	Letters to Bernard MacFadden	1933
247	Letters to Paul C. Taylor, regarding timber contracts	1934
248	Literature Review on the Effects of Groundwater Drawdowns on Isolated Wetlands	1995-11
249	Little Banana Patch & Shark River Headwaters (Stops XVII & XIX) ( 23 photograph sets )
250	Little Shark River (Stops 81-XXVI) ( 17 photograph sets )
251	Macro Invertebrate Responses to Phosphorus Enrichment in the Northern (WCA-2A) Everglades	2001-03
252	Mahogany Hammock (Stop 81-VI) ( 12 photograph sets )
253	Map of Florida	1910
254	Map of Florida 500,000 acres choice prairie farming lands in Florida.
255	Map showing completed canals in Southern Drainage District to June 1, 1934.	1934
256	Maps and documents relating to property in the proposed town of Poinciana	1925/1929
257	Maps and documents relating to property in the proposed town of Poinciana	1925/1929
258	Mature Cypress Head (Stops 81-IV) ( 25 photograph sets )
259	Mercury Concentrations in Fish from Treatment Wetlands in the Northern Everglades	2001-07
260	Miami Canal, 1919-1921	1919/1921