This book contains valuable material on Population explosion and poverty; population growth and development; Population development-environment syndrome; Habitat related problems; and reassessing population etc. This book will prove an authoritative source book.

Technological hazards are primarily seen as major 'man-made' accidents. This book contains valuable information on different technological disasters, which is collected from authoritative source. Mining disasters; War, chemicals and the environmental responses and action plans are scientifically X-rayed in this volume.

Main subjects which from the core area of physical science include physics, chemistry, astronomy, and earth science. Allied fields include material science, studies in mathematics, engineering and computer science. Sub-categorization of fields pf physical science lead to subfields like astrophysics, molecular biology, geology, hydrology, meteorology, oceanography, acoustics, geometry, statistics, space science, nanoscience, nanotechnology, design science, general science, material science, natural science, geography, paleontology, environmental studies, energy studies, weather studies, etc. This encyclopaedia provides an overview of the aforementioned subfields in terms of content analysis. Select lessons in terms of methodology for educating students in physical sciences and technology are provided herein, along with required details.

International Encyclopaedia of Physical Science and Technology covers the subject's area of physical science in its totality. It will serve as a reference book on the said subject and tends to acquaint readers with both-in- depth and extensive knowledge of the subject concerned.

Study material for students are of two types-Textbooks and Practical manuals. While text books deal with all the theoretical aspects, practical manuals help the students by explaining the schedule of practical study without going into details of concepts. There is a third category of books which combines the best of both theoretical aspect and practical methodology. Tools and Techniques of Microbiology is a book belonging to this category. The book not only gives the theoretical concepts behind the working of various tools used in the microbiology laboratory, but also details the techniques using those tools.

The book consists of nine chapters. Chapter one deals with the introduction to microbiological study, while chapters two to eight deal with various microbiological tools and techniques using those tools. Chapter nine deals with cleaning and sterilization of glassware. There are two appendices at the end dealing with preparation of stains and also some essential calculations. The book is profusely illustrated to make the understanding of the subject easy.