Pure Finding, was still in Brewers (1983) but left out of the 20?? C edition (1991)

Anyone who tells you there is no such thing as a Dog Poo Fairy should consult the 1983 edition. It was used to soften leather after it had been tanned in tannic acid. And was a viable trade in the Victorian era. The tannery in Colyford in Devon had a shit pit in the 1950s according to John Lister, organiser of various small festivals in Devon. As he said - "it stank". Bat/pigeon guano is used today, or modern chemicals in developed countries.

And there is a song about it song.mister.red > Pure Finder