(1)生命的物质基础 The Physical Bases of Life Tree of Life-What is life built of? 生命之树是用什么建造的? The 1648 potted willow experiment of Johannes Baptista van Helmont1 Tree of Life-What is life built of? 生命之树是用什么建造的? The 1648 potted willow experiment of Johannes Baptista van Helmont (1)生命的物质基础 The Physical Bases of Life