African (shona) axe?

[Rick]

I know I was :

To Make Savaloys
Take 3 pounds of young pork free from bone and skin; salt it with an ounce of salt-petre, and a pound of common salt for two days; chop it fine; put in 3 teaspoonsful of pepper; a dozen sage leaves chopped fine, and a pound of grated bread; mix it well, fill the guts, and bake them half an hour in a slack oven: they are good either hot or cold.

Salt Petre !?!
You poor Blokes .........