Harrowgate has long been celebrated for its sulphureous waters. It has also two very valuable chalybeate springs, called the _Old Spa_, and the _Tewit Well_, the water of which was formerly used internally, whilst the other water was confined to external use. But, at present, the latter is employed to very great extent as an internal medicine. The two villages of High and Low Harrowgate are situated in a pleasant open country, in the centre of the county of York, near the town of Knaresborough, and about 212 miles north of London. 300. _MOFFAT WATER is a cold sulphureous water, the smell of which is precisely similar to that of Harrowgate water, and the taste simply saline, and without any bitterness._ _Its foreign contents are common salt, together with carbonic acid gas, azotic gas, and sulphureted hydrogen gas. It is consequently very simple in its composition._ Moffat is a village situated, at the head of a valley, on the banks of the river Annan, and about fifty─six miles south─west of Edinburgh. It is surrounded by hills, some of which are very lofty. This village has obtained so much celebrity, on account of its waters, as to be considered the Harrowgate of North Britain. These issue from a rock which is at a little distance below a bog, whence, probably, they derive their sulphureous ingredients. The principal spring is contained within a stone building, and affords a sufficient quantity of water to supply every demand. It is drawn by a pump. When the water is first taken from the well it appears somewhat milky and bluish. It sparkles a little; but, on being exposed to the air, it becomes turbid, and throws up a thin film, which, on examination, will be found pure sulphur. This change takes place even in close vessels, so that it cannot be sent to any distance with advantage. The common people so much esteem this water that many of them drink at the rate of from six to ten quarts of it in a morning, and one instance has been stated of a person drinking thirty─two quarts of it in eight hours. ──────────────────────────────────────────────────────────────────────── INDEX TO THE FIRST VOLUME. ─────── Acid, sulphuric, 12; how made, properties and uses of, 145 Acid, phosphoric, 12 Acid, carbonic, 12 Acid, fluoric, 13; how made, properties and uses of, 120 Acid, boracic, 13 Acid, muriatic, 13; How made and uses of, 132 Acid, nitric, 14; How made, and uses of, 138 Adamant. See Diamond. Adamantine spar. See Corundum. Adularia, description and uses of, 70 Agate, description, uses, &c. of, 61, 62 ——, different kinds of, 63 Alabaster, description and uses of, 117 ——, calcareous, account and uses of, 111, 112 Alkalies, 18 Alumine, 15, 123 Alluvial depositions, 235 Alum, description and uses of, 123, 124 ——, Roman and Roche, 123 ——, how procured and made, 123