THE ARTESIAN WATER SUPPLY OF EASTERN FLORIDA E. H. SELLARDS AND HERMAN GUNTER. INTRODUCTION. A study of the water supply of Florida was begun in 1907 as co-operative work between the Florida State Geological Survey and the National Geological Survey. The first paper was issued in 19o8 as Bulletin No. i of the Florida State Geological Survey, and relates to the underground water of central Florida. This paper, the second of the series to be published by the State Survey, extends the study of the water supply to the counties of eastern Florida. The writers are indebted to the many well drillers and well owners who have contributed data regarding wells. Among the many who have given assistance the following should be especially mentioned: Miessrs. Bellough & Melton, J. M. Chambers, C. I. Cragin, Dr. E. S. Crill, Capt. R. N. Ellis, Hughes Specialty Well Drilling Co., W. E. Holmes, John McAllister, Dr. J. N. Mac Gonigle, McGuire & McDonald, W. J. Nesbitt, Hugh Partridge. H. Walker, Dr. De WA"itt Webb, J. WN:. Wiggins, H. Van Dorn and V. D. Holcomb. Extensive well records made in 1907-1908 ill cooperation with the U. S. Geological Survey by Messrs. Geo. C. Matson and F. G. Clapp have been utilized in the preparation of this report. Data regarding climate and rainfall have been supplied by Hon. A. J. Mitchell, Director of the Florida section of the U. S. Weather Bureau. Most of the analyses included have been made in the office of the State Chemist especially for this report. Others have been made at various times by other chemists. Credit is given with each analysis. The general discussion and introductory chapters of this paper were written by the senior author. The account of. the public, city and private supplies and of individual wells was written chiefly by the junior author.