185 A HISTORY OF THE MINERAL WATERS AND MEDICINAL SPRINGS OF ESSEX. By MILLER CHRISTY, F.L.S., and Miss MAY THRESH. [Read November 20th, 1907.] Synopsis. Page. I.—Introductory Remarks .. .. .. .. .. 185 II.—A Bibliography (arranged chronologically) of the more important Works treating of Essex Mineral Springs .. 190 III.—Particulars as to each Essex Mineral Spring .. .. 194 IV.—General Remarks on the Mineral Springs of Essex from the Geological point of view . .. .. .. 248 V. —General Remarks on the Mineral Springs of Essex from the Chemical point of view .. .. .. .. 250 I.—INTRODUCTORY REMARKS. From very early times, the waters of those natural springs which happen to be impregnated with various salts have been used for medicinal purposes and often valued very highly. Such is the case, to a certain extent, even in the present day. The waters of Harrogate, Bath, Tunbridge Wells, Matlock, Cheltenham, and other places in this country are still drunk regularly ; as are those of Homburg, Carlsbad, Marienbad, Wiesbaden, Kissingen, and many other places on the Continent of Europa. It must be confessed, however, that most of those who visit these places derive quite as much benefit from the change, the rest, and the quiet plain living in hotels or hydro- pathic establishments, under the personal supervision of a medical man, as they do from actually "taking the waters." The dictates of fashion often have, too, much more to do with the vogue of a particular spring than its curative value. Our English Mineral Springs have been valued, as stated already, from early times ; but their recorded history can scarcely be said to have commenced before the Seventeenth Century, during which various treatises on particular wells were published. Among the earlier was that of Dr. Edmund Deane, of York, on the Harrogate Springs (1626). Another work on the same springs, by Dr. John French, of London, appeared a quarter of a century later (1652). Soon after, Dr. Robert Wittie, of York, published a work on the Scarborough Spa (1660); while other writers described the springs at Bath, Cheltenham, and elsewhere.