Thanks Kim, I'll suggest it to Steve. In the meantime, he bought a book on glue (yes they write books on "glue"). Now he knows way more than he will ever need to know in ten lifetimes! I told him that he was getting a little OCD, and he read me the listing and composition of the six (or ten) different classes of glue. I don't remember much as I got bored.
Ngaire, I'll take a photo of it a little later and post it.
Jean