XII FLORIDA GEOLOGICAL SURVEY—FOURTH ANNUAL REPORT. 
Florida geology, with a review of the more important papers pub 
lished previous to the organization of the present Geological Survey. 
2. Second Annual Report, 1909, 299 pp., 19 pis., 5 text figs., one map 
This report contains: (1) A preliminary report on the geology 
of Florida, wfith special reference to the stratigraphy, including a 
topographic and geologic map of Florida, prepared in co-operation 
with the United States Geological Survey; (2) the topography and 
geology of Southern Florida; (3) mineral industries; (4) the fullers 
earth deposits of Gadsden County, with notes on similar deposits 
found elsewhere in the State. 
3. Third Annual Report, 1910, 397 pp., 28 pis., 30 text figs. 
This report contains: (1) A preliminary paper on the Florida 
phosphate deposits; (2) some Florida lakes and lake basins; (3) 
the artesian water supply of eastern Florida; (4) a preliminary 
report on the Florida peat deposits. 
4. Fourth Annual Report, 1912,175 pp., 16 pis., 15 text figs., one map. 
This report contains: (1) The soils and other surface residual 
materials of Florida, their origin, character and the formations 
from which derived; (2) the water supply of west-central and west 
Florida; (3) the production of phosphate rock in Florida during 
1910 and 1911. 
5. Bulletin No. 1. The Underground Water Supply of Central 
Florida, 1908, 103 pp., 6 pis., 6 text figs. 
This Report contains: (1) Underground water; general discus¬ 
sion; (2) the underground water of central Florida, deep and shal¬ 
low wells, spring and artesian prospects; (3) effects of underground 
solution, cavities, sink-holes, disappearing streams and solution 
basins; (4) drainage of lakes, ponds and swamp lands and disposal 
of sewage by bored wells; (5) water analyses and tables giving gen¬ 
eral water resources, public water supplies, spring and well records. 
6. Bulletin No. 2. Roads and Road Materials of Florida. 4911, 
31 pp., 4 pis. 
DISTRIBUTION OF REPORTS. 
The reports issued by the State Survey are distributed upon re¬ 
quest, and may be obtained free by addressing the State Geologist, 
Tallahassee, Fla. 
THE PURPOSE AND DUTIES OF THE STATE GEOLOGICAL SURVEY. 
Among the specific objects for which The Survey exists, as 
stated in the enactment, is that of making known information re- 
