Page:Transactions of the Geological Society, 1st series, vol. 1.djvu/327



Six cubic inches of the water were boiled for some minutes, and the gaseous contents were received over mercury. On the admission of caustic potash, no absorption took place. The transparency of the water remained undisturbed.

The following tests produced no change. Litmus paper, violet paper, turmeric paper, lime water, muriate or nitrate of barytes, tincture of galls, and prussiate of potash, even after the addition of a little muriatic acid.

Caustic potash, oxalate of ammonia, and nitrate of silver, all occasioned a turbidity. On the addition of barytic water, there is also a cloudiness, even after the water of the spring had been boiled; although neither muriate nor nitrate of barytes produced any effect. Super-carbonate of ammonia with phosphate of soda occasioned at first no change; but after standing for some time, the rod left white streaks wherever it was drawn along the sides of the glass vessel.

Eight ounces of the water slowly evaporated to dryness, yielded 0.75 gr. of solid ingredients. On adding cold distilled water to this, only a small part was re-dissolved. To the solution the following tests were applied:

a. Violet paper, slightly changed to green.

b. Oxalate of ammonia, no change.

c. Muriate of barytes, a cloudiness.

d. Nitrate of silver, a dense precipitate.

e. Super carbonate of ammonia with phosphate of ammonia, a slight cloud, and the rod produced white streaks on the sides of the vessel.

f. Nitrate of lime, a considerable precipitate.

g. There was no change produced by tincture of galls, or by prussiate of potash, even after the addition of muriatic acid.

To the residuum insoluble in water there were added: