One of links on this page produced a warning not to be ignored about hackers. Be advised Kevin [Non-text portions of this message have been removed]
Message
Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Kevin Byrne
Yahoo Groups archive
Message
2012-08-23 by Kevin Byrne
One of links on this page produced a warning not to be ignored about hackers. Be advised Kevin [Non-text portions of this message have been removed]