The expansion movements of plants and their teleological explanation : supplementary volume to Organography of plants = Die Entfaltungsbewegungen der Pflanzen und deren teleologische Deutung : Erganzungsband zur Organographie der Pflanzen / K. Goebel ; translated from German ... for the Smithsonian Institution and the National Science Foundation, Washington D.C. by the Al-Ahram Center for Scientif...