Plants use their natural ability of mineral absorption to remove toxic metals from the contaminated environment. This book describes hyperaccumulation of chromium, from tannery effluent by using an aquatic macrophyte Spirodela polyrrhiza (L.) Schleid. and its effect on growth and photosynthetic pigments of the test plant. The literature review highlights various studies carried out on heavy metal accumulation in plants and their impact on the hyperaccumulating plant. Other than hyperaccumulation and toxicity studies, attempt has also been made to study the translocation of chromium in...

The Visually Impaired children are the members of our own society. They should not be neglected.They have different needs and problems.In order to cope with their needs, many NGO's have come forward. Due to the interference of Special Education too, people now use to give recognition to these children.Special schools, the resource teachers, resource rooms and the necessary equipments are very essential for these children. This book is an attempt to know the visually handicap children closely so that we can understand them and give them a helping hand.