ILLUSTRATIONS.

PLATES.
PLATE No.k FOLLOWING PAGE
I. Fig. I. Phosphate washer..........................
Fig. 2. Drill used in prospecting f or hard rock phosphate ........
Fig. 3. View of incline to Pit .................................. 32
2. Fig. I. Pit of hard rock phosphate mine......................
Fig. 2. Top surface of Miami oolitic limestone .................
Fig. 3. View showing laminated structure of plate rock deposit..3:2
3. Fig. I. Pit of land pebble phosphate, Mulberry .................
Fig. 2. View showing indurated overburden in pebble phosphate..
Fig. 3. View of abrupt break in the phosphate stratum.......... 3
4. Fig. I. Irregular top surface of bed rock of land pebble .........
Fig. 2. Unconformity in the phosphate stratum ................
Fig. 3. Irregular line of contact between yellow and gray sand..... 32
5. Pit of plate rock phosphate mine showing very irregular top surface of limestone...................................... 32
6. Miccosukee Basin, Low Water Stage of i9g9......................... 64
7. Fig. I. Lake Jackson .......................................
Fig. 2. Alligator, Lake......................... 0.*0. ......... #64
8. Fig. I.- The Sink of Lake Lafayette..........................
Fig. 2. Paynes Prairie, Looking Out From the Sink ...............
Fig. 3. View of Paynes Prairie From Near the Sink................ 64
9. Spouting Well near Orlando ................................... 64
10. Fig. I. Exposure of hardpan at Black Bluff on Clark's Creek, eight miles from Fernandina ............................
Fig. 2. Artesian well used for power, Melbourne............... 88
I I. Palmetto flatwoods ........................................... 96
12. Fig. I. Scrub,' east side of Lake Kingsley, Clay County..........
Fig. 2. Sandy pineland, DeLeon Springs .......................
Fig. 3. Open flatwoods, three Miles east of DeLeon Springrs.. 13. Fig. I. Everglades west of Ft. Lauderdale .....................
Fig. 2. Small prairie, four miles west of Sebastian..............
Fig. 3. Turnbull Hammock, one mile west of Daytona ............. 96
14. Fig. I. Sand dune near Mayport ..............................
Fig. 2. Ancient sand dune, two miles west of Daytona ...........
Fig. 3.- Exposure at Saw Pit Landing, St. Marys River ............ 96
15. Map showing areas of artesian flow in Florida. .... .... 1 -o
16. Map showing geographical divisions of the State .................. 204
17. Salt marshes ................................................. 232
I8& Mangrove swamps (near head of Biscayne Bay)................... 232
19. Muddy swamps (of Apalachicola River)............ ....... 0..... 232
20. Calcareous streams........................................... 232
21. Suwannee River estuaries (Hog Island)..........................2'48
22. Estuarine swamps of Blackwater River (Santa Rosa Co.) ..........248
23. Cypress ponds and bays................... ..................... 248
24. Small lakes (south of Tavares, Lake CO.) ........................ 248
25. Borders of large lakes.......................................... 280
26. Saw-grass marshes (around Lake Harris) ........................280&