I. Northwest Florida
2Northeast Florida
3.Central Florida


 Figure 1.- Location of Florida counties included in the 5-56 Survey.

 Sampling Procedure
 Budgetary considerations limited the size of the sample.
Altogether, 4,697,856 rural inhabitants were enumerated in the
eligible counties in 1960 by the U.S. Census. The total popula-
tion was distributed proportionately as follows: Alabama, 19.3
per cent; Florida, 9.2 per cent; Georgia, 26.2 per cent; Tennessee,
28.5 per cent; and Texas, 16.8 per cent. The sample was appor-
tioned among the states in the same ratio as was the eligible
rural population. The number of records taken totaled 1,088
of which 100, or 9.2 per cent, were secured in Florida.
 All states were further stratified into geographical and/or
topological areas. Strata boundaries were determined for all
intra-state areas. In Florida three such areas were delineated
(Figure 1). The number of records taken from each area was
in proportion to its eligible population to that of the State.
 State highway maps, on which roads, houses, and other
features were identified, were used to delimit clusters of 20