No.	Title	Date
1	Correspondence relating to Everglades drainage and land sales	1918
2	Correspondence relating to Everglades drainage districts	1931
3	Dredges and dredging on the North New River canals, 1920-1927 (bulk 1927)	1920/1927
4	Dredges, dredging and canals, 1912-1920.	1920
5	Dredges, dredging and canals in the Everglades, 1906?-1913?
6	Everglades photographs, 1921.	1921
7	Everglades scenes, ca. 1912.	1912
8	Excerpts from Tropic magazine	1916
9	Excerpts from Tropic magazine	1914
10	Hydrogeologic investigation of the Floridan Aquifer system at the I-75 Canal site, Collier County, Florida	2001-12
11	Lake Okeechobee and environs, 1912-1916	1916
12	Letters from O. A. Hardin describing Southern Drainage District plans for levees, dikes and canals	1918
13	Miami Canal, 1919-1921	1919/1921
14	Moore Haven (Fla.), October 5, 1916.	1916
15	Narrative of a cruise to Lake Okeechobee	1918
16	Official report of the Board of Trustees of the Internal Improvement Fund to the Legislature of Florida relative to the drainage operations of the Atlantic and Gulf Coast Canal and Okeechobee Land Company, 1893	1893
17	Papers and map relating to Tamiami Trail	1926
18	Photographs of plants approximately 1913-1934 / collected and captioned by Gifford.	1934
19	Preliminary Evaluation of Hydrologic Data Collected from the C-103 basin, Dade County, Florida	1985-06
20	Records and map relating to proposed town of Chevelier, 1917-1919.	1919