246 FLORIDA GEOLOGICAL SURVEY-I5TH ANNUAL REPORT 
the Southern States, where a more favorable climate and lower living 
costs prevail. 
Parts of Florida have become widely known as winter resorts. 
This is particularly true of the Atlantic coast, the southern two-thirds 
of the peninsula, and the Gulf coast. This has given rise in the tourist 
centers to a development peculiarly adapted to the needs of winter visi¬ 
tors, and has called for an extraordinary amount of building in this 
part of the State. 
In 1921, there were 5,312 miles of railway within the State, which 
amply serves the regions already developed, and in which development 
will continue for some time. Water transportation is also highly de¬ 
veloped and is carried on inland by rivers, lakes and canals. Interstate 
and foreign marine commerce is an item of considerable magnitude, 
which is handled through three chief ports (Jacksonville, Tampa, and 
Pensacola) and numerous smaller ones. 
SOURCES OF STRUCTURAL MATERIALS 
Within the last half-century the production of common brick and 
tile in Florida has not supplied the demand for these materials. Geor¬ 
gia and Alabama producers have been called on to supply the shortage, 
which has resulted in Florida becoming one of the principal markets 
for the products from these states. The excessive increase in freight 
rates, in addition to the enormous development in south Florida, has, 
within the last decade, caused an earnest inquiry into the possibilities 
of developing a local supply of structural materials adequate to meet 
this growing demand or for finding satisfactory substitutes. 
The three producers in the extreme western portion of the State 
(Escambia County) have, on the other hand, marketed much of their 
output in neighboring states, even supplying wants as far away as New 
Orleans. It is to be noted, however, that the shipping distance by rail 
from Pensacola to South Florida is greater than from the Piedmont 
section of Georgia, thus making it cheaper to use Georgia products 
than those from West Florida. Shipment by water from Pensacola 
would mean hauling the brick several additional times, thus making it 
little, if any, cheaper than rail transportation. It is most expedient, 
therefore, for Georgia brick to be used in peninsular Florida, when 
local supplies are inadequate or of unsuitable quality, in preference to 
