Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 335
d well washed by pouringover it warm water, and allowing it to run through ; awarm solution of oxalic acid should now be mixed withit, and the Prussian blue will dissolve into a bright blueink. Red ink is made by boiling chips or raspings of Brazilwood in vinegar, and adding a little alum and gum ;… … Drying rooms for hides. Marking ink is made by dissolving nitrate of silver inwater, and then adding some solution of ammonia, a littlegum water, and some Indian ink to colour it. Printersink is made by grinding drying oil with lamp-black. The powdered gall-nut is an excellent test for iron…
Scientific recreations
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