How Did Scientific American End Up on the Album Hooteroll?
Yep, that's Jerry Garcia and Howard Wales holding up an issue of Scientific American.
I did a double take, too, when I received a photo of the inside gatefold cover of the album Hooteroll? via e-mail from Eric Klotz, founder of Visualized. (Incidentally, Klotz was also responsible for my last album cover obsession—and the pulsar data visualization it was based on). I had to learn more. So I bought a second-hand vinyl (released in 1971, Douglas 5 record label) and CD (released in 1987, Rykodisk and Douglas Communications), and settled in for some internet research.