Discuss and learn French: French vocabulary, French grammar, French culture etc.
It's seems to be a particular room of medical school, in the past. It was here they prepared the medicinal products in order to cure people.
It's no use nowadays.
Some of them are famous. You could see an example here : http://www.youtube.com/watch?v=Kgqv7O9--fY
I'm very sorry if I made English mistakes.
Merci bien, c'etait tres utile!