Originally published in 1981 Historical Plant Geography is an introductory treatment of historical plant geography and stresses the basic theoretical frame of the subject. The book is about neither the study of vegetation nor the concept of the ecosystem, instead focusing on the much older tradition concerned with analysing the geographical distribution of individual species and natural plant groups. Important areas are discussed, such as global plate tectonics and sea-floor spreading, plant maps are introduced and there is a basic treatment of recent advances in plant taxonomy. The book will appeal to students and academics of geography, botany, ecology and environmental sciences.

"Vital Questions" examines issues which have enormous influence in shaping the attitudes of our society and the way we think and look at life. Most of us have assumed for years that there must be overwhelming proof for such well established ideas as the Big bang, Relativity, and Evolution. On closer investigation one finds that the evidence is astonishingly flimsy. A number of theories taken as indisputable, from primary school to university, are examined and found to be in serious doubt.