Keywords: Vegetable Mould and Worms figure 1 (English labels).png en Figure 1 from The Formation of Vegetable Mould through the Action of Worms curves adjusted in Photoshop to make background white Caption Fig 1 Diagram of the alimentary canal of an earthworm Lumbricus copied from Ray Lankester in Quart Journ of Microscop Soc vol xv N S pl vii Scanned from The Works of Charles Darwin edited by Paul H Barrett R B Freeman volume 28 1989 William Pickering London author October 1881 book publication PD-old The Formation of Vegetable Mould through the Action of Worms Black and white illustrations of animals Invertebrate digestive system Lumbricidae Uploads from public domain works by User Richard001 |