Alchemy Symbols

This is a sketch I did from a real Alchemy image I found on the internet one day. It dates back to the 1500's or so I believe. I've forgotten a lot of the meanings behind the symbols in the image...but I think the serpents and the alive/dead plant represent life and death. I also think it resembles the medical symbol we use today! the words "IN SOLE" means "in the sun" I think, because the sun ment gold...and that's what the alchemists back then were after! the moon and sun I think just represent the sun and moon. Or I could be wrong. anyone wanna guess the meaning? ^_^