WATER SUPPLY OP EASTERN AND SOUTHERN PEORIDA. 275 
312.4 - 312.10..Blue sand, shells and pieces of rotten sticks. 
312.10- 315.2 ..Blue sandstone. 
315.2 - 320 .. Sand, water in this sand stands 3 feet above wood¬ 
en curb. 
320 - 321 ..Blue sandstone. 
321 - 340 ..Fine shell and sand, coarser broken shell toward 
bottom. 
340 - 340.3 ..Rock. 
340.3 
- 350 
.. Coarse broken shell, blue pebbles and pieces of 
coquina, water 2 feet above curb, runs freely 
at 1 foot above. 
350 
- 357 
..Yellow sandstone, water 2 feet above curb. 
357 
- 359 
. .Broken shell, pebbles, pieces of coquina. 
359 
- 373 
.. Pulverized shell. 
373 
- 374 
.. Gray limestone, with some broken shell lying im¬ 
mediately beneath, water stands 2 feet 4 inches 
above on penetrating this rock. 
374 
- 392 
.. Pulverized shell, water stands at level of wooden 
curb. 
392 
- 400 
..Alternations of rock and blue marl. 
400 
- 409 . 
.Blue marl. 
409 
- 432 
. .Alternations of blue marl and sand which afforded 
the greatest flow to date and the first fresh 
water below 49 feet. 
432 
- 507 
. .Blue marl. 
507 
- 510 
.. Coquina. 
510 
- 542 
. .Proportion of sand in the marl increases very much. 
542 
- 571 
.. Quicksand, below casing, can not drill at all. Pro¬ 
portion of sand in the marl increases. 
571 
- 614 
..Marly sand. Head of water from 9 to 11 feet 
above ground. Water rises so as to dribble 
from a height of IV/2 feet. 
614 
- 618 
. .Quicksand bed. 
618 
- 618.6 
.. Rock. 
618.6 
- 640 
.. Sand or sandstone. 
640 
- 707 
..Fighter colored and runs to greenish marly sand 
all through here. At depth 678-688 more sand, 
water from 690-700, very many tiny spiral 
shells. 
707 
- 710 
..Brown, coarse material. 
710 
- 794.6 
.. Sand with enough marl with it to give a green 
color to the slush as ejected. 
794.6 
- 809 
..Loose sand full of black specks and tiny bivalve 
and spiral shells. 
