Acknowledgements

As is typical for a paper of this type, it is not an individual effort, many people contributed many long hours of discussion and review in an effort to make this paper interesting and comprehensible. In addition to C. Peterson who did all of the illustrations; this includes W.B. Blok, B.L. Brewer, F. Faria, W.F. Gilger, C. Hansen, E.R. Helthall, C. Hutcheson, M. McQuillan, S. Thoolen, B. Vuga, and especially S.J. Gould, R.J. Malkus, and G.A. Meade. In fact, this paper in many ways is really a distillation of the observations and opinions of others, as Bill Gilger said "this reads like my biography."