In fact, the human body is built up with 13 of the 70 elements, namely: oxygen, hydrogen, nitrogen, chlorine, fluorine, carbon, phosphorus, sulphur, calcium, potassium, sodium, magnesium, and iron.

By a combination of phosphorus with sodium, potassium, calcium, and magnesium, the various phosphates are formed.

He found that it contained small quantities of silica, iron phosphate, magnesium carbonate, calcium carbonate, calcium sulphate, potassium nitrate, potassium sulphate, sodium borate, sodium sulphate, and a considerable quantity of sodium chloride.

Fortunately they were not delayed by lack of magnesium powder, a large quantity having been found in one of the laboratories.

And in the glare of the magnesium powder the moving picture boys saw a curious sight.

Suitable febrifuges are found in potassium nitrate, potassium chlorate, sodium sulphate, or magnesium sulphate, either of which or a mixture of two or more of them, the animal will readily take in his drinking-water.

The composition of natural sea-water is, in a thousand parts, approximately, as follows: Water, 964 parts; Common Salt, 27; Chloride of Magnesium, 3.6; Chloride of Potassium, 0.7; Sulphate of Magnesia, (Epsom Salts,) 2; Sulphate of Lime, 1.4; Bromide of Magnesium, Carbonate of Lime, etc., .02 to .03 parts.

The composition of natural sea-water is, in a thousand parts, approximately, as follows: Water, 964 parts; Common Salt, 27; Chloride of Magnesium, 3.6; Chloride of Potassium, 0.7; Sulphate of Magnesia, (Epsom Salts,) 2; Sulphate of Lime, 1.4; Bromide of Magnesium, Carbonate of Lime, etc., .02 to .03 parts.

Now the Bromide of Magnesium, and Sulphate and Carbonate of Lime, occur in such small quantities, that they can be safely omitted in making artificial seawater; and besides, river and spring water always contain a considerable proportion of lime.

In every hundred parts of the solid ingredients, Common Salt, 81 parts; Epsom Salts, 7 parts; Chloride of Magnesium, 10 parts; Chloride of Potassium, 2 parts; and of Water about 2900 parts, although this must be accurately determined by the specific gravity.

Magnesium.

The lights of the theater were then turned down, and the discourse was continued in darkness; among the most prominent lines visible in the spectrum of the meteorite, Professor Dewar specified magnesium, sodium, and lithium.

Though the gas and electric lights were out, the sky was rosy from the reflection of the petrol-tanks which the Belgians had set on fire; now and then a shell would burst with the intensity of magnesium, and the quivering beams of two searchlights on the forts across the river still further lit up the ghastly scene.

As I passed south of the Island with its whole mass between myself and the photographer I saw the flashes of magnesium light, having all the appearance of lightning.

of magnesium or calcium chlorides.

TECHNOLOGY.Furnace for Decomposing Chloride of Magnesium.

* FURNACE FOR DECOMPOSING CHLORIDE OF MAGNESIUM.

The heating gases are furnished by a producer, and pass from below upward over the shelves, S, then through the channel, C, into the drum, D, which contains the concentrated chloride of magnesium.

The drum, D, after being emptied, is again filled with concentrated solution of chloride of magnesium.

The character of the soil where these results have been observed is light and soapy, and Mr. E. Dickinson, Superintendent of the Laramie Division, furnishes the following analysis: Sodium chloride 10.64 Potassium 4.70 Magnesium sulphate 1.70 Silica 0.09 Alumina 1.94

Ferric oxide 5.84 Calcium carbonate 22.33 Magnesium 3.39 Organic matter 4.20 Insoluble matter 941.47 Loss in analysis 4.00 Traces of phosphorous acid and ammonia.

System-Nr.27: Magnesium.

System-Nr.27: Magnesium.

Magnesium, a magic mineral.

The chief constituents of the waters are calcium sulphate, sodium sulphate, magnesium chloride, calcium carbonate, and sodium chloride, and there are traces of other minerals.