Leon,
Thank you for the nice invitation! And welcome to the WWW! Wow, a fresh forum! Haven't seen one of those in awhile. My hopes for a positive future!
Also, I just finished reading a good book,
The Mercury Visions of Louis Daguerre by Dominic Smith. When one talks of poisoning the brain cells, no one comes close to Daguerre. I was touched and inspired by the book.
Zoe Wiseman
http://www.zoewiseman.com