90 
FLORIDA GEOLOGICAL SURVEY-—I4TH ANNUAL REPORT 
Depth in feet. 
A limestone, breaking into coarse fragments. The predominating fossil 
is a small, flat echinoderm, the internal cavity of which is, in most 
cases, filled with calcite crystals. Foraminifera are also present, al¬ 
though not numerous....JpL... 665 
A compact limestone with slightly brownish cast. The same small, flat 
echinoderm is present, although broken up by the drill, and is not 
abundant. Foraminifera are present, although not abundant. 670 
A brown limestone, rather hard but not very compact. Few if any fossils 
are preserved. It is probable that the minute fossils in the rock have 
dissolved out and the cavity partially refilled by calcite crystals. This 
gives the rock a porous and partially crystallized appearance and 
causes it to break into medium coarse fragments by the drill.. 680 
The material is chiefly light brown or grayish brown, porous limestone, 
partially crystallized, the fossils having been destroyed. With this is 
included light-colored rock ...... 690 
This sample consists chiefly of soft, white limestone, in which is included 
a few foraminifera. A limited amount of the harder, brownish rock 
from the stratum above is present.:.. 710 
A light-colored, rather hard, although porous, limestone which seems to be 
made up of a mass of broken shells and other fragments of fossils. One 
small flat echinoderm present, although broken. 720 
White granular limestone. Fossils not numerous, although a few foram¬ 
inifera are seen; also broken pieces of a small flat echinoderm...... 740 
Grayish brown limestone, rather hard and partly crystallized. A few 
fossils, including a small gastropod. 760 
Grayish brown limestone, rather hard and partly crystallized. Few, if 
any, fossils ........ 770 
The greater part of the material of this sample is brown or grayish brown 
powdered up by the drill medium fine. With this are several large 
pieces of ground rock which consists almost entirely of a mass of small 
calcite crystals. The sample contains also some light-colored ma¬ 
terial, inluding a few foraminifera.... 790 
The material of this sample is similar to that of the last. The large frag¬ 
ments consist chiefly of a mass of small calcite crystals, the mass being 
brown in color..-.------.1. 800 
The rock at this depth is not unlike that at 800 feet, although it is darker 
in color, being very dark brown; somewhat compact and partlycrystal- 
lized .J....|..... 814 
A light-colored limestone which powders up medium fine in drilling. 
Foraminifera present ....... 820 
A light-colored limestone which powders up medium fine in drilling. 
Foraminifera present, although not abundant........ 830 
The greater part of this sample is white and rather soft limestone; there 
are also some pieces of a white limestone consisting chiefly of broken 
fragments. With this are some dark-colored pieces which probably 
scaled off of the side of the cavity. A small flat echinoderm is present 838 
Description of samples of another well at this locality has been given 
in the Seventh Annual Report of the Florida Survey, page 49.* In this 
*Fla. Geol. Surv., 7th Ann. Rept., p. 49, 1915. Description of samples from 
well of Palmetto Phosphate Company, near pit No. 1, about 2^4 miles northwest of 
Tiger Bay. 
