21. The saltpetre derived from deposits in byres, stables and doocots would be stored in the Powder House. 22. Hemu took technological help from Portuguese in manufacturing brass cannons and production of saltpetre used to make gunpowder. 23. After testing the saltpetre , they find that instead of sodium nitrate, the can contains sodium nitrite. 24. In 1875 he moved to Iquique which was then in Peru and became involved in the production of saltpetre . 25. After 1960, most of the saltpetre production in Rjukan was transferred to Norsk Hydro factories at Her�ya in Porsgrunn. 26. Al-Baytar used the name " snow of China " ( ) to describe saltpetre while writing about gunpowder. 27. Saltpetre was refined in an area between the house and the mills that now is occupied by a formal garden.28. The doctors ask the chef what this is; he responds that this is saltpetre , used to preserve meats. 29. Further peasant unrest, in the shape of the saltpetre uprisings, took place over the next two centuries in Hotzenwald. 30. "' Gold plating "'- The Saltpetre / Salt mixture which was then deposited onto copper vessels.
