CleverRaven/Cataclysm-DDA — pull request #3708 by Rivet-the-Zombie (2013-10-17 22:00:23+00:00)
Title: ‼FUN‼ with chemistry!

Adds a whole new crafting skill in the form of a chemistry skill.

Changes up a lot of recipes to use it, and also adds books as required.

fixes https://github.com/CleverRaven/Cataclysm-DDA/issues/3583