Rupert: I notice that you write your posts in a kind of medical/homeopathic "shorthand", which I believe, goes over the head of most of us.
In one of the posts you left for me to transmit during your upcoming absense from the forums, you mentioned a "Materia Medica", which I looked up and came up with this link:
[url] which is an online and free encyclopedia our readers might use to help understand your posts a little better.
Wikipedia defines the term:
Materia medica is a Latin medical term for the body of collected knowledge about the therapeutic properties of any substance used for healing. Nowadays we would call these drugs. In Latin, the term literally means "medical material/substance".[/url]