PETROLEUM POSSIBILITIES OP ELORIDA 
Solid limestone..... 
Soft gray limestone......... 
Hard rock ML... .......-...-.-. 
Shell stratum ........ 
Very hard sandstone...—... 
Sandstone .......... 
Alternately hard and soft limestone......——. 
Straw colored sandstone....J1S...... 
Drab-colored, solid sandstone, gradually deepening in its color to a 
final blue at 230 feet, with small delicate shells throughout. 
Bed of small dainty shells. Water level is 3 feet 4 inches below 
wooden curb ....... sgjg...'.||| . 
Very hard drilling, required to move casing in these alternations. 
Water level about 20 inches (near 242 feet). Very active quick¬ 
sand ......... 
Took out loads of quicksand..... 
Sand. Water in this sand ran slowly out of pipe at 3 feet 6 inches 
above ground ...:........ 
Coquina .. ... 
Broken shell and sand, more shell (white and pulverized) the 
last few feet. Water level just above ground level. 
Rock. Water stands 2 feet 4 inches above curb in this stand. 
Brown clay, first seen in this well..... 
Sand ...•...... 
Blue sandstone .,.I. 
Blue sand, shells and pieces of rotten sticks. 
Blue sandstone ..................:. 
Sand. Water in this sand stands 3 feet above wooden curb__ 
Blue Sandstone ..... 7 ..... 
Fine shell and sand, coarser broken shell toward bottom. ..__ 
Rock ...... 
Coarse, broken shell, blue pebbles and pieces of coquina. Water 
2 feet above curb, runs freely at 1 foot above....... 
Yellow sandstone. Water 2 feet above curb. 
Broken shell, pebbles, pieces of coquina_____ 
Pulverized shell ....... 
Gray limestone, with some broken shell lying immediately be¬ 
neath. Water stands 2 feet 4 inches above on penetrating 
this rock ..........7.. 
Pulverized shell. Water stands at level of wooden curb.. 
Alternations of rock and blue marl__._,. 
Blue marl .. 77 . HjsL,.;* ......7. 
Alternations of blue marl and sand which afforded the greatest 
flow to date and the first fresh water below 49 feet... 
Blue marl 7.7_........__...... 
Coquina .....L.......77.---^^.—-.:.H ...... 
Proportion of sand in the marl increases very much_ 
Quicksand, below casing; can not drill at all. Proportion of sand 
in the marl increases. -7%'^- . .,.........^7 
Marly sand. Head of water from 9 to 11 feet above ground. 
Water rises so as to dribble from a height of 1V/2 feet_ 
Quicksand bed ...... 
Rock ............... .7. 
Sand or sandstone .'......-:.'.:.H.....7:....i.-....;.:....................:.. 
93 
Depth in feet. 
148 * 151 
151 - 169.6 
169.6 - 170 
170 - 171 
171 - 171.3 
171.3 - 175 
175 - 185 
185 - 190 
190 - 238 
238 - 238.8 
238.6 - 248 
248 - 250 
250 - 262 
262 - 263 
263 - 300 
300 - 301.6 
301.6 - 303.6 
303.6 - 310 
310 - 312.4 
312.4 - 312.10 
312.10- 315.2 
315.2 - 320 
320 - 321 
321 - 340 
340 - 340.3 
340.3 - 350 
350 - 357 
357 - 359 
359 - 373 
373 - 374 
374 - 392 
392 - 400 
400 - 409 
409 - 432 
432 - 507 
507 - 510 
510 - 542 
542 - 571 
571 - 614 
614 - 618 
618 - 618.6 
618.6 - 640 
