You can get a little more information about what they're doing and why here: http://thebrainobservatory.ucsd.edu/hmblog/?cat=17
Note particularly in the "Not-So-White-Matter" post the use of gelatin (although it doesn't penetrate the tissue). Sue -- Sue Frantz Highline Community College Psychology, Coordinator Des Moines, WA 206.878.3710 x3404 sfra...@highline.edu Office of Teaching Resources in Psychology, Associate Director Project Syllabus APA Division 2: Society for the Teaching of Psychology APA's p...@cc Committee --- To make changes to your subscription contact: Bill Southerly (bsouthe...@frostburg.edu)