Oddly, I, too, have a collection of daguerreotypes, inherited from my father. He was a collector of antique photography, which is why I know about things like cyanotypes. Making daguerreotypes is not only dangerous, as Bill says, but technically difficult. It's an exacting process. It lasted about 10 years commercially, and was replaced by the much simpler and cheaper tintype (or ferrotype, I think it's called.) The daguerreotypes are beautiful. They have a haunting clarity. It's weird to look at a photo from the 1840s that is so clear the subjects look alive.