It's possible I missed this bit of lore amongst the many books I've read, I don't know. I've also done a Google search on the subject and come up empty handed.
So, does anyone have any lore-based information, or speculative guesses?
When I first began playing MW, I thought for the longest time they had something to do with Alchemy. It wasn't until I ran some experiments that I stopped ensuring I had one in my inventory while brewing potions.
Thoughts? Ideas?