Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 334
ain water ; this should be keptthree or four weeks before using, shaking the bottle fromtime to time. Blue ink has lately been much used ; it is made bydissolving newly-formed Prussian blue in a solution ofoxalic acid. To make it, dissolve some yellow prussiateof potash in water in one vessel, and… … 168 CHEMISTRY. to be put upon a paper filter, and 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…
Scientific recreations
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