[Albion Wilde]

You're both wrong, according to Encyclopedia Britannica, which says saltpetre.

[alexander_busek]

You're both wrong, according to Encyclopedia Britannica, which says saltpetre.

Jeez, you're right! I've been hoisted by my own petard! "Salpeter" is the German spelling.

(Yours, however, is the British spelling!)

My apologize to cherry for having falsely corrected him! Mea culpa!

Regards,