124 FLORIDA GEOLOGICAL SURVEY-SEVENTH ANNUAL REPORT. 
4. Light hammock *4 mile south of Ocala. Depth 0-12 inches. 
5. Subsoil of same. 12-30 inches. 
6. Rich heavy hammock near Ocala. Depth 0-12 inches. 
7. Rich heavy hammock 2^4 miles south of Ocala. Depth 0-12 
inches. 
ANALYSES. 
Light hammock 
Rich heavy 
hammock 
Near Ocala 
y 2 mile S. 
Near 
Ocala 
2 y s 
miles S. 
Gravel (2-lmm.) _ _ 
Tr. 
Tr. 
Tr. 1 
Tr. 
0.28 
0.27 
1.58 
Coarse sand (l-. 5 mm.) _ 
1.59 
1.80 
1.45 
3.07 
3.30 
2.16 
2.62 
Medium sand (. 5 -. 25 mm.)_ 
15.63 
18.25 
19.63 
21.44 
22.29 
17.01 
13.08 
Pine sand (25-1mm.) 
62.87 
65.37 
62.40 
53.54 
55.29 
40.94 
46.32 
Very fine sand (.l-. 05 mm.)- 
15.70 
10.07 
11.65 
13.30 
10.64 
20.26 
19.83 
Silt (. 05 -. 01 mm.)_ 
! 1.25 
1.20 
1.80 
2.68 
2.62 
5.61 
1 3.38 
Fine silt (. 01 -. 005 mm.)- 
0.48 
0.55 
0.62 
1.33 
1.64 
2.23 
1.50 
Clay (. 005 -. 0001 mm.)_ 
! 0.61 
1.39 
1.26 
2.39 
3.06 
5.55 
6.86 
Organic: matter __ .. 
1.16 
0.75 
0.65 
1.36 
0.92 
4.94 
2.61 
Moisture, air-dry _ 
0.35 
0.22 
0.30 
0.49 
| 
0.32 
1.61 
1.39 
Total 
99.64 
99.60 
99.76 99.60 100.36 
1 
100.58 
99.17 
The following statistical information on this area has been com¬ 
piled by Dr. R. M. Harper: 
Although the area treated does not include the whole of any one county, 
and it is therefore impossible to estimate its population accurately, some sta¬ 
tistics of the density and composition of the population of Marion County will 
probably be typical enough for the whole area. Nearly half the area is in that county, 
which includes within its borders considerable areas of rich farm land, timber 
land, phosphate mines and unproductive scrub. (Its area has not been changed 
since 1880, when one of the most complete censuses was taken, but Citrus 
County did not exist then, and Sumter was considerably larger than at present, 
so that comparisons between 1880 and 1910 cannot be made for those counties.) 
The density of population of Marion County was about five inhabitants per 
square mile in i860, 6.3 in 1870, 7.8 in 1880, 12.5 in 1890, 14.7 in 1900, and 16.4 
in 1910. The percentage of whites has oscillated between 35 and 45 per cent 
at the last four censuses. The white population nearly doubled between 1880 
and 1890, the decade in which phosphate was discovered, and increased less than 
1 per cent between 1890 and 1900, the decade of two severe freezes which almost 
destroyed the citrus fruit industry in this latitude. 
Of the total population of Marion County in 1880, 61.8 per cent were born 
in Florida, 21.5 per cent in South Carolina, 7.2 per cent in Georgia, 2.6 per cent 
in Alabama, 1.4 per cent in North Carolina, 0.8 per cent in Virginia, 4 per cent 
in other states, and 0.7 per cent in foreign countries. (The great preponderance 
of South Carolinians over Georgians is interesting, but not easy to explain.) 
No similar statistics are given in later censuses for areas smaller than states, 
