HARDENING WEAPONS. The preparation
Get the titimalo of wild horseradish root, each equal share: Crush all ingredients together, and at least one pound of estraine sauce: add a pound of urine of a child, that does not contain phosphoric acid, nitrite, the salt of soda, sal gem, salt ammoniac, each at a dose of a drachm: mix everything together in a glass jar, which will close exactly, then store it in a cellar, sunk in the ground, and lasciavelo for twenty days. Then withdraw it, pouring the liquid in a retort, to which a ball, and adapt it to you luterai: distilled to a graduated fire: and extinguish the fluid obtained the glowing blade that you want to harden.
- Library selection of Italian works of ancient and modern Vol 579
- Giovanni Pozzi
- Secrets of arts and crafts
- Volume first
- page 22
- Milan, 1855
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