(Chris - I shall take my seat at the back of the class! Considering I got an "S"-level in chemistry before swapping direction to an arts degree I must have suffered from limited absorbtion, a deficit in cohesion, compounded by lack of focus at the critical point - (to be crystal clear) - an element of poor distillation of knowledge. The indicator is that the ideal solution would have been to pay more attention. Living down here I may have been the victm of London dispersion forces. I'll consider it at Mass. perhaps it didn't fully go in by osmosis, or I was too into passivity - period. Not trying to be over-reactive with my retort. What's the solution? Perhaps, without keeping you in suspension any longer, I just missed the typo...