WATER SUPPRY OP PASTERN AND SOUTHERN PEORIDA. 285 
Sand ..... 58%- 59 
Soft rock with sand pockets. 59 - 62 
Loose rock and sand . 62 - 66 
Sand. 66 - 81 
Loose sand and rock . 81 - 84 
Marl . 84 - 84% 
Sand ... 84%- 92 
Marl and shell . 92 -115 
Gray clay with small amount of fine sand... 115 -160 
Clay and marl . 160 -167 
Marl containing a small quantity sand and shell. Sand 
increasing with depth. 167 -197 
Marl or soft chalky rock. 197 -204 
Tough slate colored clay. 204 -217 
Marl containing sand, shell and gravel. 217 -232 
Marl or soft chalk-like rock . 232 -237 
Marl and sand . 237 -240 
Slate colored clay . 240 -268 
Clay . 268 -294 
Marl and clay . 294 -298 
MIAMI. 
The public water supply at Miami is taken from seven wells, 
located on the north side of Miami River, about one and one-half 
miles west of the city. The principal supply of fresh water in 
these wells is obtained at a depth of about 85 feet, although some 
water is reported at 30 and at 80 feet. The water rises to within 
14 inches of the surface and flows into a receiving basin. At 90 
feet, in well number 7, recently drilled, salt water was reached. 
This well was plugged and fresh water admitted from above. 
The following notes were made from occasional samples from 
one of these wells. The samples were kept by the Florida East 
Coast Hotel Company: 
