I38 FLORIDA GEOLOGICAL SURVEY-TWELFTH ANNUAL REPORT 
Sellards, E. H. 
First annual report of the Florida State Geological Survey, 1907-08, 114 
pp., 6 pis., 1908. 
A preliminary report on the underground water supply of central Flori¬ 
da.—Florida State Geol. Survey, Bull. No. 1, 103 pp., 6 pis., 6 figs., 1908. 
Mineral industries (of Florida). Florida State Geol. Survey, 2d. Ann. 
Rept., pp. 233-251, 5 pis., 1909. 
A preliminary paper on the Florida phosphate deposits. Florida State 
Geol. Survey, 3rd Ann. Rept., pp. 17-41, 5 pis., 1910. 
Some Florida lakes and lake basins. Florida Geol. Survey, 3rd Ann. 
Rept., pp. 43 - 76 , 4 Pis, 5 figs., 1910. 
The Florida phosphate deposits. Am. Fertilizer, Vol. 35, No. 10, pp 
37-47, 13 figs., November 4, 1911. 
An intermittent spouting well. Science, new ser., Vol. 33, pp. 37-38, 
January 6, 1911. 
The soils and other surface residual materials of Florida, their origin, 
character, and the formations from which derived: a study in agrogeology: 
Florida State Geol. Survey Fourth Ann. Rept., pp. 1-79, 12 pis., 1 map, 3 figs., 
1912. 
Production of phosphate rock in Florida during 1910: Florida State 
Geol. Survey, Fourth Ann. Rept., pp. 157-168, 1912. 
Classification of the soils of Florida: Florida, Dept Agr., 12th Bienn. 
Rept., pp. 249-300, 1913. 
Origin of the hard rock phosphates of Florida: Florida State Geol. 
Survey, Fifth Ann. Rept., pp. 23-80, 9 pis., 1 map, 1913. 
Origin of the hard rock phosphate deposits of Florida (abstract) : Geol. 
Soc. America, Bull., Vol. 24, No. 4, pp. 716-717, December 23, 1913. 
The relation between the Dunnellon formation and the Alachua clays of 
Florida: Florida State Geol. Survey, Sixth Ann. Rept., pp. 161-162, 1914. 
The origin, mining, and preparation of phosphate rock: Am. Inst., Min. 
Eng. Bull. No. 93, pp. 2379-2395, 3 figs., September, 1914. 
The development of some lake beds in Florida (abstract) : Science, new 
ser., Vol. 39, p. 404, March 13, 1914. 
Mineral industries and resources of Florida: Florida State Geol. Survey, 
Sixth Ann. Rept., pp. 21-114, map, 20 figs., 1914. 
Some Florida lakes and lake basins: Florida State Geol. Survey, Sixth 
Ann. Rept., pp. 115-159, 13 figs., 1914. 
Seventh annual report: Florida Geol. Survey, 342 pp. 80 figs., 4 maps, 
Tallahassee, 1915. 
The pebble phosphates of Florida: Florida Geol. Survey, Seventh Ann. 
Report, pp. 21-116, 1915. 
Natural resources survey of an area in central Florida; geology and min¬ 
eral resources: Florida Geol. Survey, Seventh Ann. Rept., pp. 121-133, 1915. 
A new gavial from the late Tertiary of Florida (Tomistoma americana) 
Am. Jour. Sci., 4th ser., Vol. 40, pp. 135-145, 6 figs., August, 1915. 
