Shrooms, LSD, & Mescaline

Hey guys

I was wondering if someone could help me find some scientific information regarding the previously mentioned drugs? I'd like to know more of the anatomy/physiology behind the chemicals.

Thanks!

Google?......everything you ever wanted to know.

You will need to enlarge or print it to see it full-size.

http://tripzine.com/pit/signal_theory_poster.pdf

Neat poster