This week's issue of Time Magazine, which arrived today, contains two articles which, on hasty scanning, I recommend to those who don't subscribe. A feature article on the brain, although not discussing PD, contains one of the clearest diagrams of how neurons interact. Another article, also without mention of PD, contains a photo of the gamma knife apparatus, which has been discussed elsewhere as a somewhat dubious means for non-invasive PD surgery. J. R. Bruman (818) 789-3694 3527 Cody Road Sherman Oaks, CA 91403