Note 5 — INTRODUCTION.
Reading edition
The highly useful terms of Heliotropism and Geotropism were first used by Dr. A. B. Frank: see his remarkable ‘Beiträge zur Pflanzenphysiologie,’ 1868.
Reading edition
The highly useful terms of Heliotropism and Geotropism were first used by Dr. A. B. Frank: see his remarkable ‘Beiträge zur Pflanzenphysiologie,’ 1868.