The Health Exhibition Literature - 1884 Author:Unknown Author Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: Mr. LUCAS, with reference to the case of the river Alyn, produced a section showing the exact state of the case, and remarked that what he said in the paper was ... more »that it would affect similar cases. The section showed that the water flowing down the slanting strata sank into the limestone and ran a quarter of a mile underground in a course that was not known, and it was on that ground that the Committee refused compensation. Of course rivers which had no such underground course, would not be affected. The Chairman then proposed a vote of thanks to the four gentlemen who had read the papers, which was carried unanimously, and the Conference adjourned for a short time. THE ORIGIN OF WATER SUPPLY. By G. J. Symons, F.R.S. THIS title might possibly be supposed to imply a history of the past, but in this Health Exhibition, pace Old London, we deal chiefly with the present and with the future. I know no better word than origin wherewith to describe the small portion of the great subject of water supply which I am permitted to discuss. All water supply comes from the clouds, and it is with the products of the clouds as rain (including therein snow and hail) that I have to deal. Perhaps before describing the general features of rainfall distribution, it may be permissible to explain (for the use of those who have never done it) how the fall of rain is measured. If we imagine a flat dish—a tea-tray, for instance—placed upon a lawn during rain, it is obvious that (subject to loss by splashing) that tray would at the end of the shower be covered by a layer of water of a depth approximately equal to that which fell upcn allportions of the lawn, and the depth of the water on it (say J inch) would be the depth of the rain fallen. Obviously, besides the loss by splashing, the wat...« less