Perhaps the best expression of our intent in organ z ng this gathering is found in the definition of the word colloquy and its derivations. A gathering allowing familiar and informal conversation among colleagues with similar interests was our objective. Our motives were, of course, complex. Our main intent was not, however, to add to the list of books competing for the time of the scientific community at-large. However, while informality was our objective, a lasting document exists in the form of this publication of the presentations forming the skeleton on which we built less formal but...