Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries. This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings. This comprehensive volume will be an invaluable resource for researchers, educators, and consultants, in academic and government settings, who work to further scientific understanding of these fishes. No other single compilation has documented current information in such detail.

Vol 1 905p Vol 2 961p.

As Pittsburgh and its surrounding area grew into an important commercial and industrial center, a group of families emerged who were distinguished by their wealth and social position. Joseph Rishel studies twenty of these families to determine the degree to which they formed a coherent upper class and the extent to which they were able to maintain their status over time. His analysis shows that Pittsburgh's elite upper class succeeded in creating the institutions needed to sustain a local aristocracy and possessed the ability to adapt its accumulated advantages to social and economic changes.

"This book is a companion volume to Biographical books, 1950-1980, completing a comprehensive one hundred and five year bibliography of biographical and autobiographical works published or distributed in the United States"--Preface.