Describes the range in size of dinosaurs, tells what they ate, how they raised their young, how they defended themselves, and where they lived, and shows various types of dinosaurs

This book provides a sound basis for analysing water supply schemes from the point of view of water quality. A systematic approach to decision making in water resources planning is presented with particular reference to wastewater re-use. Methods for deciding between recycling, purification or use of river water are given. The problems of poor quality water are documented and alternatives suggested, including management in a way to achieve objectives in the most economic manner. Various methods of system simulation and optimization are applied in a number of case studies. Methods of analysis and numerical methods are described, as well as the basis of pollution and water quality. The economics of desalination are also discussed. The examples studied range from regional supplies to internal re-circulation. Groundwater and artificial recharge are considered, and stormwater quality and sewerage systems are also covered. Computer applications exist throughout and a number of simulation and optimization programs in BASIC are presented.

Product Description: Build your own prehistoric world! It’s so easy to do with this ingenious activity book. Just press out the six dinosaur models and their accessories—including eggs, bones, and palm trees—create some scenery, and start playing...read more

Product Description: The ferocious king of the dinosaurs is brought into your hands in Make and Move: T. Rex. This illustrated learning guide presents basic facts about dinosaur anatomy in an easily accessible format, with colorful illustrations, simple explanations, and a large 19-piece floor puzzle with hinged joints...read more

Praise for Dinosaurs on My Street by David West: "The illustrations are center stage... plenty of strong appeal for dinosaur buffs." -- School Library Journal Titles in the Firefly Dinosaur series: Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago This series of six books is for dinosaur enthusiasts and novices alike. It covers dinosaurs living in the six periods that make up the Mesozoic Age, which spanned prehistoric time 227 million years ago to 65 million years ago. Each book is an illustrated guide to 25 of the best known dinosaurs of that period. Up-to-date information accompanies the highly detailed computer-generated artworks -- big, colorful, lifelike, fill-the-page dinosaurs. The books open with an illustrated introductory spread that provides background information on the time period in which the 25 dinosaurs lived. The dinosaur spreads bear a brief introduction, information on when and where it lived, its size, and where fossil remains have been found. They also have a shadow icon of an adult, child, or animal (e.g. domestic cat) which indicates the size of the dinosaur. All dinosaur-loving readers will thrill at the giant and engaging dino artworks. These books are sure to be enjoyed over and over again.

Praise for Dinosaurs on My Street by David West: "The illustrations are center stage... plenty of strong appeal for dinosaur buffs." -- School Library Journal Titles in the Firefly Dinosaur series: Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago This series of six books is for dinosaur enthusiasts and novices alike. It covers dinosaurs living in the six periods that make up the Mesozoic Age, which spanned prehistoric time 227 million years ago to 65 million years ago. Each book is an illustrated guide to 25 of the best known dinosaurs of that period. Up-to-date information accompanies the highly detailed computer-generated artworks -- big, colorful, lifelike, fill-the-page dinosaurs. The books open with an illustrated introductory spread that provides background information on the time period in which the 25 dinosaurs lived. The dinosaur spreads bear a brief introduction, information on when and where it lived, its size, and where fossil remains have been found. They also have a shadow icon of an adult, child, or animal (e.g. domestic cat) which indicates the size of the dinosaur. All dinosaur-loving readers will thrill at the giant and engaging dino artworks. These books are sure to be enjoyed over and over again.

Product Description: Praise for Dinosaurs on My Street by David West: "The illustrations are center stage... plenty of strong appeal for dinosaur buffs." -- School Library Journal Titles in the Firefly Dinosaur series: Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago This series of six books is for dinosaur enthusiasts and novices alike...read more

Product Description: Praise for Dinosaurs on My Street by David West: "The illustrations are center stage... plenty of strong appeal for dinosaur buffs." -- School Library Journal Titles in the Firefly Dinosaur series: Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago This series of six books is for dinosaur enthusiasts and novices alike...read more

Product Description: Many people know the sabertooth cat, not many know the entelodont and this book seeks to change that. After the astroid went BOOM [struck the planet] and all life on earth bigger than a breadbox was wiped out, the mammals took center stage in evolution's ever unfolding drama...read more

Product Description: Praise for Dinosaurs on My Street by David West: "The illustrations are center stage... plenty of strong appeal for dinosaur buffs." -- School Library Journal Titles in the Firefly Dinosaur series: Dinosaurs of the Upper Triassic and the Lower Jurassic: 25 Dinosaurs from 235--176 Million Years Ago Dinosaurs of the Middle Jurassic: 25 Dinosaurs from 175--165 Million Years Ago Dinosaurs of the Upper Jurassic: 25 Dinosaurs from 164--145 Million Years Ago Dinosaurs of the Lower Cretaceous: 25 Dinosaurs from 144--127 Million Years Ago Dinosaurs of the Mid-Cretaceous: 25 Dinosaurs from 127--90 Million Years Ago Dinosaurs of the Upper Cretaceous: 25 Dinosaurs from 89--65 Million Years Ago This series of six books is for dinosaur enthusiasts and novices alike...read more

Product Description: Sure you know T-Rex was the meat-eating king and brontosaurus munched on leaves, but what else was on the dino dining menu during the Mesozoic era? Meet the 'vores: carnivores, piscivores, herbivores, insectivores, "trashivores," "sunivores," and omnivores like us...read more