Re: Plumbum is Pb. is lead

giving rise to plumber, (the original aquaducts had lead linings) and plumb bob or for some thing to be plumb(alinged perfectly straight.. )done by dropping a plumb weight attached to a string, to get a perfectly straight and true vertical line.

lead ore is galena-- i don't know why it has this name. and is actually a pretty rock. silver is often found in the same ore, so galena is dull metalic grey, with bits of sparkley silver threads.


my other obsession