Established in 1872, Yellowstone National Park is the oldest and one of the largest national parks in the world. In this remarkable book, scientists Mary Meagher and Douglas B. Houston present 100 sets of photographs that compare the Yellowstone of old with the park of today.

Most of the photo sets include three pictures-not the usual two-with many of the original views dating back to the 1870s and 1880s. From the same photo points used by early photographers, Meagher and Houston rephotographed the scenes in the 1970s, and then, following the great fires of 1988, again in the 1990s. The result is an illuminating record of Yellowstone's dynamic ecosystem and its changes over time.

Through close analysis of the photos and reference to the vast amount of available data, Meagher and Houston describe changes in vegetation, growth of wildlife populations, the effect of beaver occupancy on wetland areas, and geothermal and elevational shifts. At the same time they point out the extent to which many sites have not changed-despite important switches in park policy and an increase in human activity.

Yellowstone National Park has long been the focus of major ecological debates. Should managers allow wildfires to burn? Should the elk and bison populations be controlled? Are too many people visiting the park? Yellowstone And The Biology Of Time offers a wealth of information to help us answer these questions. A visual treasure, this book will be of value to scientists from various disciplines as well as to the many people who care about Yellowstone and other protected wilderness areas around the world.

This book provides a lucid summary of behavioral, neural and endocrine regulation of immune responses and of the effects of immune system activity on neural and endocrine functions and behavior. The underlying premise is that the brain and immune system represent a single, integrated system of defense. The discussion includes such topics and stress induced modulation of innate resistance and adaptive immunity in influenza viral infections.

Dr. Meagher, an Emergency Room Physician, drawing on his own and colleagues' experiences, researches the nature of error. He demonstrates that these mistakes are often due to several overlapping factors, rooted in the instinctual responses from the "old" part of our brains - those that seem to have developed first. This is what is called the reptilian brain. By recognizing the effect of this "reptilian brain" on our actions and most importantly, our mistakes, we can take steps (The NewMind Response ) to curb the reptilian responses, making each of us more effective, empathetic and less error prone.

This book provides a lucid summary of behavioral, neural and endocrine regulation of immune responses and of the effects of immune system activity on neural and endocrine functions and behavior. The underlying premise is that the brain and immune system represent a single, integrated system of defense. The discussion includes such topics and stress induced modulation of innate resistance and adaptive immunity in influenza viral infections.