Bücher der Reihe Developments Series

This book is appropriate for advanced undergraduate students of micro biology and biological sciences in universities and colleges, as well as for research workers entering the field and requiring a broad contemporary view of anaerobic bacteria and associated concepts.

In the field of plastics technology, the process of extrusion is widespread and important. This has occurred not only by the use of modern screw extruders, but also by the incorporation of improved process control systems, the better design of dies and extrudate handling machinery and by the utilisation of improved plastics materials and additives.

Since the first edition of this book was written, public awareness of tropical rain forests has become so great that issues involving their exploitation are the stuff of daily newspapers, radio and television.

Rather it is that the biologist, lacking the physicist's or chemist's experience in "reading" mathematical formulae, finds it difficult to appreciate what is happening in a mathematical treatment and to grasp the implications of the results obtained, when these are given in mathematical form.