266 FLORIDA GEOLOGICAL SURVEY-I5TH ANNUAL REPORT U W Umbrella stands, 106 Wad clay, 106, 244 United States Bureau of Standards, 138, Wakulla County, 211 174, 191, 196, 205, 207, 211 Walton County, 211-213, 217, 241 United States Geological Survey, 14, 63 Washington County, 214-215 Urns, 243 Washington, H. S., 80 Utica Brick & Tile Co., 197 Wash tubs, 106 Uses of Florida kaolin, 232 Water in clay, 84 Watkins, J. H., 221, 222, 224, 260 v Weathering, 65 Vanadium, 86 Wedgewood, Josiah, 138, 242, 259 Vases, 15, 243, 244, 245 Wheeler, H. A., 64, 69 Vaughan, T. W., 28, 29, 34, 260 Whitney Brick Co., 176 Veatch, J. Otto, 28, 29, 76, 84 Williams, I. A., 69 Vernadsky, W., 77 Williams, John Lee, 138, 140, 242, 260 Vitrified brick, 106 Williams, W. W., 179, 180 Vivianite, 77 Wood, C. Lindley, diatomite, 16 Volusia County, 28, 29, 32, 41, 208-211 Worthington, J. E., 63