In true sense, pollution can be considered the result of the growth and development of modern civilization. And effective pollution control is the need of hour. The present book in three volumes contains authoritative material on the Biological control of environmental pollution. Biodegradation; Microbial ecology; Microbial technologies; Microbes and sulfur cycle; Bacteria marine habitats; Environment and biotechnology industry; Microbiology of dairy products; Food biotechnology; Microbial attachment, Molecular mechanisms etc. like topics are scientifically analysed in these volumes, The text is supported with appropriate data and suitable diagrams. The book will prove an authoritative reference book for students, scholars and academics in the field besides the biological and environmental scientists and activists.

Evolution is an interdisciplinary science and extends to diverse fields such as Zoology, Botany, Earth Science and Geography. The present title is an effort to summarize the basic concept and principles of the subject, to present the elementary factual information with which a person to be competent in the field should be familiar, and to show how these principles and facts may be applied in a practical way to the interests and welfare of man. Although the book relates especially to animals, enough material given covering plants to bring out their essential place in the system of nature. The present title is intended for beginners who wish to understand the fundamentals of Evolution. The whole gamut of subject has been described in a simple and systematic manner suited for readers who have not been exposed sufficiently to the subject. It is an adequate text for all requirements in this area for the students of all Indian Universities. The primary aim throughout has been clarity, simplicity and the high standard. It will be a valuable study aid to teachers, students and research scholars in the related field.

The present title Encyclopaedia of Research Mathodology has been carefully compiled and edited to meet the long felt needs of increasing number of students and researchers who have to deal with habits, behaviour, collection, reproductive biology, care and management of laboratory animals and preparation for microscopic studies including microscopes, instruments of staining processes. It is one of the few books that give a practical introduction to the husbandry of laboratory animals for use both by research workers and technicians involved. It will also be needed for students of reproduction in agriculture, veterinary, medicine, zoology and the biomedical sciences. The material presented in the following pages will afford the student and researcher in the subject a comprehensive view and appropriate background material for focused studies. It is our earnest hope that this book will be of great value to all our students.

The Encyclopaedic Dictionary of Mathematics is a compilation of terms and expressions used in various branches of mathematics. An effort has been carried out to bring together not only the commonly used terms but also the more specialized and the new terms which have been introduced with the recent developments. This provides a clear understanding of the technical terms and their interpretation which are central to the use of mathematics in such diverse fields of interest such as management, commerce, economics, business and industry, sociology, psychology, statistics, operational research and various other branches of science and engineering. The terms have been explained in the relevant context and illustrated whenever needed. At certain appropriate places, the line diagrams have been included whenever the meaning of a word can be best understood by means of a diagram. This encyclopaedic dictionary will be of immense value to the students of mathematics, social science, science and engineering students at various levels.