ELEVATIONS IN FLORIDA. 
E. H. SELLARDS. 
No detailed topographic map of Florida having been made, 
the elevations given in the following list are necessarily taken 
from various sources, some of which are based on precise levels, 
while others represent approximate levels. The principal sources 
from which the data has been obtained include levels made by the 
United States Geological Survey, the United States Coast and 
Geodetic Survey, the United States Army Engineers, the 
Engineers of the Florida State Drainage Commission, and surveys 
made in connection with the location of the various railroads in 
the State. 
The elevations from the railroad surveys are either taken 
direct from the profiles, or are listed as given in the Dictionary of 
Altitudes, Bulletin 274, United States Geological Survey. The 
precise levels which have been made by the United States 
Geological Survey and the United States Coast and Geodetic 
Survey in Florida are obtained from Bulletin 516 of the United 
States Geological Survey. The levels made by the United States 
Army Engineers in Florida are obtained from Preliminary 
Survey for a Ship Canal from the St. Marys River to the Gulf 
of Mexico, made in 1879; Survey of the St. Johns River to 
Charlotte Harbor, by way of Lake Tohopekaliga, for purpose of 
steamboat communication, Appendix J, Annual Report of Chief 
of Engineers, 1882; Survey of the Kissimmee River, Florida, 
and connecting lakes and canals flowing into Lake Okeechobee, 
thence down the Caloosahatchee River to the Gulf of Mexico, 
1899; and Survey of the St. Johns River, above Lake Monroe, 
1903. The levels by the State Drainage Commission are from a 
map of the Everglades drainage district issued in 1913. 
In each instance the authority for the elevation is given fol¬ 
lowing the name of the locality. For this purpose abbrevations 
are used as follows: U. S. G. S. (United States Geological 
Survey) ; U. S. C. & G. S. (United States Coast and Geodetic 
Survey) ; U. S. Army Engrs. (United States Army Engineers) ; 
