204 
FLORIDA STATE GEOLOGICAL SURVEY. 
Kobe Sound, 1100 feet; West Jupiter, 101 feet; Palm Beach, 1212 feet; 
Fort Lauderdale, 108 feet, and 387 feet; Delray, 119 feet. Along the 
line of the keys deep wells have been sunk at Indian Key Channel over 
650 feet; Key Vaca, 700 feet; Knights Key, over 700 feet; Big Pine 
Key, over 700 feet ; Key West, 500, 950 and 2398 feet. While on the 
west coast there are wells at Marco, 376 feet; Estero, 285 feet; Punta 
Rassa, 140 and 280, feet; St. James City, 148 and 335 feet; Sanibel 
Island 420 feet, and over 600 feet, and Buck Key, 605 feet. In addi¬ 
tion wells have been sunk in the prairies south of Caloosahatchee River 
and west of Lake Okeechobee as follows: T. 47, R. 31, 647 and 691 
feet; T. 48, R. 31, 720 feet; T. 46, R. 33, 921 feet. 
The logs of most of the wells mentioned were not recorded care¬ 
fully and logs of several are not available. More or less continuous 
series of samples were saved at Palm Beach, Indian Key Channel, Key 
Vaca, Key West, and Buck Key. 
Palm Beach:—Darton 1 gives the following partial record for the 
Palm Beach well; 
Partial record of well of C. I. Craigin, Palm Beach. 
Feet. 
Sands with thin layers of semi-vitrified sand at 50 and 60 feet. 0- 400 
Very fine grained soft, greenish gray quartz sand, containing occasional 
foraminifera and water worn shell fragments. 400- 800 
White sand with abundant foraminifera of four or five species. 850- 860 
Gray sand containing shark’s teeth, small water-worn shells and bone 
fragments, sea urchin spines, and lithified sand fragments.... 904- 915 
Samples at frequent intervals, Vicksburg limestone containing Orbitoides 
in abundance throughout, together with occasional indetermin¬ 
able fragments of molluscan casts, corals and echinoderms. It 
is a creamy white, hard, homogeneous limestone throughput... .1000-1212 
Darton was unable to determine definitely the age of the series over- 
lying the limestones, but the organic remains from 800 to 915 feet 
suggested Miocene age, while foraminifera between 400 and 800 feet 
indicated that the beds whence they came are also probably of Miocene 
age. 
This record shows that the top of the Vicksburg group (Lower 
Oligocene), lies between 915 and 1000 feet below the surface at Palm 
Beach. The great thickness of quartz sands is the most noteworthy 
feature of the record. 
Key Vaca:—Two wells were sunk at Marathon, Key Vaca, one 
reaching a depth of 435 feet, the other 700 feet. The combined re¬ 
cords of the two wells gives the following section. 
1 Darton, N. H. Am. Jour. Sci., (3) xli, pp. 105-106. 
