821
Letter from Ernest Coe, Tropic Everglades National Park Association, informing her of the current status of Everglades National Park creation
822
Letter from J. E. Moseley
823
Letter from Joseph K. (Tahan) Griffis
824
Letter from Nathaniel S. Thomas
825
Letter from Roy Nash
826
Letter relating to lands at Flamingo (Cape Sable)
827
Letter to Charles S. Walker regarding land sales, October 19, 1925
828
Letter to Ernest Coe, December 8, 1932
829
Letter to Lucien A. Spencer
830
Letter to Marjory Stoneman Douglas, September 28, 1920.
831
Letter to P. A. Vans Agnew regarding Polly Parker property
832
Letter to Willson from P. A. Vans Agnew
833
Letterhead stationery of the Everglades National Park Commission
834
Letters
835
Letters : to Minnie Moore-Willson
836
Letters from O. A. Hardin describing Southern Drainage District plans for levees, dikes and canals
837
Letters to Bernard MacFadden
838
Letters to Paul C. Taylor, regarding timber contracts
839
Limnological investigations of seven lakes in the Istokpoga drainage basin
840
Linking ecology and economics for ecosystem management