On the same conditions, bishop Ernest, in 1477, let to some one for his lifetime the collection of the saltpetre.
There was a smell in his nostrils like charring wool and saltpetre.
Another cement is made of a bes of brick dust, a third of rock salt, an uncia of saltpetre, and half an uncia of refined salt.
Gunpowder was made in the country with saltpetre and sulphur.
That saltpetre in no case could be useful for this purpose needs hardly be mentioned.
From here, also, indigo and saltpetre are exported in large quantities.
Its connexion with the latter was principally on account of the saltpetre which it furnished for making gunpowder.
Gunpowder was also made with saltpetre and sulphur found in the country.
They had charcoal and saltpetre and sulphur, but they knew nothing of gunpowder.
This is principally due to the saltpetre with which it is impregnated.
See potassium nitrate.