ToME: the Tales of Maj'Eyal

Hello!

I recall from older versions that wandering warparties could drop body parts for alchemist quests.
Is that removed?

I killed 10 parties, maybe more, and found no body part.

First off, make sure you're fighting Adventuring Parties. Far East patrols, the Ziguranth, and those Allied patrols that only attack if you forget the Cloak of Deception don't yield ingredients. If you're sure you're fighting the right guys, there's still only like a 1-in-3 chance of getting ingredients. Note also that you automatically collect any ingredients they drop, just like getting them from the monsters themselves, so you might not notice when you get something.