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Indelible Ink For Marking Linen


Add Caustic Alkali to a saturated

solution of Corpous Chloride until no further precipitate forms; allow

the precipitate to settle, draw off the supernatant liquid with a

siphon and dissolve the hydrated copper oxide in the smallest quantity

of Ammonia. It may be mixed with about 6 per cent of Gum Dextrine for

use.



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