No.	Title	Date
1	Biscayne Canal Dredge	1923
2	Biscayne Canal Near Linton, Fla. Looking North	1895/1896
3	Boat in the New River Canal	1921-09-07
4	Dredge in Canal	1920-10-22
5	Dredges and dredging on the North New River canals, 1920-1927 (bulk 1927)	1920/1927
6	Dredges, dredging and canals, 1912-1920.	1920
7	Dredges, dredging and canals in the Everglades, 1906?-1913?
8	Everglades photographs, 1921.	1921
9	Everglades scenes, ca. 1912.	1912
10	Excerpts from Tropic magazine	1916
11	Excerpts from Tropic magazine	1914
12	Lake Okeechobee and environs, 1912-1916	1916
13	Letters from O. A. Hardin describing Southern Drainage District plans for levees, dikes and canals	1918
14	Miami Canal, 1919-1921	1919/1921
15	Narrative of a cruise to Lake Okeechobee	1918
16	Papers and map relating to Tamiami Trail	1926
17	Photographs of plants approximately 1913-1934 / collected and captioned by Gifford.	1934
18	Report of exploration, examination and reconnaissance of the lands of the Tamiami Trail in Dade County, Florida	1917-03-23
19	Report of progress upon preliminary survey for reclaiming lands within the Southern Drainage District	1917
20	Seminole Camp in Everglades	1929