Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 188
ration under the in-fluence of heat, furnishes a double chloride, hydrated and MAGNESIA. 21 crystallised. This chloride, if heated to redness in anearthenware crucible, leaves as a residue a nacreous pro-duct, composed of micaceous, white scales, chloride ofanhydrous magnesium. If six hundred grams… … Group of alum crystals. is put into an earthenware crucible made red-hot, andheated for a quarter of an hour under a closed lid, we shallfind on pouring out the fluid on to a handful of earth,that we have obtained instead of scoria, forty-five grams ofmetallic magnesium. The metal thus obtained is…
Scientific recreations
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