On Fri, 06 Jul 2018 18:27:16 +0000, Grant Edwards wrote: > On 2018-07-06, Gene Heskett <ghesk...@shentel.net> wrote: > >> In that case, I hate to say it, but your education is sorely lacking in >> the fundamentals. Smelting for instance was discussed at length in the >> high school physics books I was reading by the time I was in the 3rd >> grade. Don't they teach anything in school anymore? Tanning leather for >> instance involves a long soaking in strong tea, and doesn't name the >> brand or genus of the tea, the important part was the tannic acid >> content. > > IIRC, oack leaves/chips work well also.
But the *best* quality tanned leather was historically made from dog faeces, known as "pure" by the tanners of the time: Members only: https://www.vettimes.co.uk/article/a-dirty-job-but-not-to-be-sniffed-at/ But this might work for you: https://www.vettimes.co.uk/app/uploads/wp-post-to-pdf-enhanced-cache/1/a-dirty-job-but-not-to-be-sniffed-at.pdf -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list
