Note (return) — THE BEULAH SALINE SPA, NORWOOD.

"As a mean of comparison, the saline contents of a quart of the Cheltenham pure saline, as analyzed by Mr. Brande, the predecessor of Mr. Faraday in the professorship at the Royal Institution, is placed opposite to the Beulah Spring, to enable the reader to judge how much superior, as an aperient water, the latter is to that of Cheltenham. And, first, it may be observed, that the gross amount of the several salts, in the same quantity of the waters, is much greater in the Beulah than in the Cheltenham spring, the difference being forty-nine grains and a half of solid saline matter in a quart—that is, the impregnation is nearly one-third stronger; and, secondly, the nature of the saline ingredients also merits observation. One hundred grains out of one hundred and sixty-one, consist, as we see, in the Cheltenham, of muriate of soda, or common table-salt. Now, this substance, when perfectly freed from other salts adhering to it, possesses comparatively very feeble aperient properties; whereas the mass of the ingredients in the Beulah Spa is composed of two powerful saline substances, the sulphate of magnesia, and that peculiar double salt, the sulphate of soda and magnesia, constituting three-fourths of the whole saline impregnation." 4