First published in 1981, this book presents an original approach to an area of great importance in comparative zoology and physiology and evolutionary biology: the evolution of air breathing in vertebrates from aquatic ancestors. The subject is approached from a functional as well as an anatomical viewpoint, utilising knowledge of the physiology of extant animals to trace probable evolutionary steps. Opening with a brief summary of current views of vertebrate evolution, the authors then go on to deal with problems of oxygen transfer in water and air and the structure and function of gills and...

This biography of Elizabeth Mantell helps to fill a major gap in the literature on church and mission in Malawi. Women missionaries have been numerous and influential. Yet, on the whole, they have done their work without seeking or receiving much in the way of public recognition. The book will hold particular interest because of the period which it covers. Much has been written about the pioneering days of missionary work in Malawi, the 1875-1914 period. The book also makes an original contribution to the story of one of the famous centres of mission work in Malawi. Ekwendeni was among the...