Note 3 — Chapter I · THEORY OF SILVER PRINTING.
Reading edition
Footnote [3] Chlorine and Potassium Nitrite and Water give Hydrochloric Acid and Potassium Nitrate 2Cl + KNO2 + H2O = 2HCl + KNO3 and Chlorine, Silver Nitrate, and Water give Silver Chloride, Hydrochlorous Acid and Nitric Acid. 2Cl AgNO3 + H2O = AgCl HClO + HNO3