Yes! taken orally, enough to cover a sixpence, and it was awful tasting, according to him. It was probably equal to a half teaspoon?
I asked him if he was a fire hazard afterwards:2fun::2fun:
He said he didn't remember, but it sure cured his problem.
Another old health salts was Kruschens,
http://www.healtheries.co.nz/health-blog/comments?disc=1&thread=164
the same amount,enough to cover a sixpence.(I don't know why a sixpence was so important as a measuring device?) followed by a cup of black tea with lemon, it was a daily ritual for my father.
Or his hangover cure?? 2 raw eggs ( not beaten) in half a cup of Worcester sauce, and drink it straight down.

Joan