““the September 1970 Supplement featured a "Birch Bark Crib."48 The walls of the crib were constructed of birch bark, into which the builders had inserted Plexiglas windows for the baby. The mattress was made of polystyrene. With its back-to-the-land allegiance to birch bark and its easy appropriation of industrial plastics, the crib neatly linked the world of the commune to the world of the high-technology factory.””