Hello All, I cannot imagine that crystallographers will not find the following link astonishing... http://ngm.nationalgeographic.com/2008/11/crystal-giants/shea-text/1 JPK ******************************************* Jacob Pearson Keller Northwestern University Medical Scientist Training Program Dallos Laboratory F. Searle 1-240 2240 Campus Drive Evanston IL 60208 lab: 847.491.2438 cel: 773.608.9185 email: [log in to unmask] *******************************************