 Well, Guido Capuano, who I referred to, he was a mature student, I mean he had, I think he had escaped from Italy right after the war or something like that, came to Canada. And he was a big gruff guy, and he had many ideas, many ideas, many good, many good chemical ideas. In fact, he was the, at least that year, he had what I would call the best dissertation of anyone when he graduated, but unfortunately he was also interested in money, and so he was always worried about trying to sell this, and I just couldn't quite agree with him on that. So he was an exceptional student, you know, a second one was Matt King, who was now in Perth Australia, and we worked together on sulfuric acid. So I need to discuss with you a little bit, you know, if you have a sulfide or you're going to produce some sulfide, some form, and most of it is going into sulfuric acid, which is a marketable problem. But nobody really knew how the process worked, and so Matt and I developed, let's say, a matrix, a matrix held as their approach to it, and equilibrium approached to it, and worked all that out, and eventually we could tell the industry how they should arrange their processes, and I'm really quite proud of that, I don't know, and Matt was a wonderful student too, he was another best, he had the best, what we call preliminary exam, but the year he was doing that, so he was a very good author.