396 
FLORIDA GEOLOGICAL SURVEY—THIRD ANNUAL REPORT. 
U. 
Underground water, circulation of..... 
depth of ... 
general discussion. 
hydrogen sulphide in. 
source of. 
Union Brick Co., section in pit of. ..... 
Union Phosphate Co-, exposure in pits of. 
U. S- Engineer’s Office, information from. 
experiments with water hyacinths 
U. S. Geological Survey, co-operation with. 
V. 
Page 
. 102 
.. 103 
. 99-107 
... iQ4 
. 99 
. 154 
.............. 27 
.136,141,153, 364 
. 292 
11,85, 199, 207, 298, 303 
Valkaria, well at.. 192 
VanDorn, H., assistance from. 85 
log of well by.... 176 
wells drilled by.174, 176 
VanHise, C. R., treatise on metamorphism. .. 53, 105 
Vertebrate remains in phosphate formations.... 23, 34 
Vertigo . 280 
Vicksburg group in eastern Florida, description of. 86- 88 
Vicksburg limestones, irregularity of top surface of. 24, 28 
relation of phosphate-bearing formation to. 24 
Vignoles, C., observations upon the Floridas.^. 365 
Vivipara . 280 
Volusia County, area of artesian flow in. 174 
location and surface features of. 173 
map of. 175 
water-bearing formations of. 174 
W. 
Wacissa River, peat deposits of. 240 
Wade, O. H., well drilled by. 157 
Wade & Hampton, well drilled by. 131 
Waldo, M, A., fossils donated by...... 34 
Walker, Bryant, shells identified by.....207, 280 
Walker, H., logs of wells by........132, 147 
wells drilled by.131, 141, 147, 151,181 
Walker, R. C., log of well by...... 149 
well drilled by.... 149 
Walkill, well at.... 160 
Walton Co., elevations in...' 219 
Warrants issued, list of..... 14 
Water hyacinth peat.... .292-293, 302, 342 
Waterfalls in Middle Florida hammock belt. 220 
Waters, C. E., on peat bog of Maryland.... . 362 
Watson, A. M., well of.•.. 181 
Webb, Dr. DeWitt, assistance from.... 85 
