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However, phenolphthalein, though reacting alkaline with monocarbonate of soda, indicates the acidity of the bicarbonate of soda, a thing which, as I have just said, litmus will not do. We will take two jars containing solution of monocarbonate of soda, and in the first we will put some phenolphthalein solution, and in the second, some litmus tincture.
What prolonged boiling and the aid of bicarbonate of soda leave almost intact the fly's grubs quickly turn into fluid, even as the flesh worms fluidify hard-boiled white of egg. This is done in each instance without violence, probably by means of a special pepsin, which is not the same in both cases. The liquefier of meat has its own brand; the liquefier of the bolete has another sort.
When manganese occurs along with iron, which in general is the case, we must take care that the iron in the solution is in the state of peroxide, which is precipitated on the addition of the bicarbonate of soda, and is allowed to remain as a precipitate, because it does not affect the titration injuriously.
External excitation, keep in motion, mechanical excitement of respiration, cold effusion to the head and face, feet in hot water, electro-magnetism, internal stimulants, as bicarbonate of ammonia, 5 to 25 grains in water, carbonate of ammonia, 5 to 15 grains in water, coffee and vegetable acids.
She affected a semi-invalidism and for fifteen years had spent one day a week in bed. She took no exercise and a great deal of soda bicarbonate and tried to fight her fat with baths. Fifteen or twenty years had worked a startling change in the two sisters, Flora the beautiful and Sophy the plain. It was more than a mere physical change. It was a spiritual thing, though neither knew nor marked it.
With the Haig brothers' discovery of Scotch whiskey began, as a matter of course, the institution of the "bachelor dinner." "Necessity is the mother of invention," and exactly twelve years after the first "bachelor dinner" came the discovery of bicarbonate of soda.
At midnight, when the moon is full, place a mirror, set in a wooden frame, in a tub of water, so that it will float on the surface with its face uppermost. Put in the water fifteen grains of bicarbonate of potash, and sprinkle it with three drops of blood, not necessarily human If the reflection of the moon in the mirror then appear crimson, the test is satisfactorily accomplished. "No. 2.
The gas, being heavier than air, forms a sort of blanket over a blaze. In the big copper tank was placed water, in which was dissolved some bicarbonate of soda, the sort mothers use to cook with. Then, in a small receptacle, fitting in one end of the big cylinder, was some sulphuric acid, or oil of vitriol. The two liquids were prevented from mixing until the proper time, by a simple arrangement.
The soda combines with the fatty acids of the animal or vegetable oils forming soaps; bicarbonate of soda is then added to neutralize the excess of caustic soda; and, lastly, sand; and the whole is evaporated to dryness at the temperature of boiling water.
As in dissolving in hydrochloric acid and oxidizing with nitric acid the solution ought to be twice tested for protoxide of iron, even although at the first test none can be discovered. The silica is taken upon a filter, dried, ignited, and weighed. The filtrate is treated with bicarbonate of soda, and titrated with chameleon solution in the way described above. By NELSON H. DARTON.