Any branch of biology depends for its progress on the development of new concepts and to a lesser, but sometimes crucial, extent on the elimination of erroneous notions. Understanding the roles of bacteria required first the observation that such minute creatures existed, and subsequently the exper imental demonstrations that their presence was necessary for the occurrence of particular phenomena. In this first volume, the authors review the development of scientific understanding of the role of microbes as agents of diverse natural processes. Notably absent is a separate review of the history of microbes as agents of disease, a his tory available in many other publications. Regrettably absent is a review of the his tory of microbes as agents of inorganic transformations, a serious omission that resulted from the illness of the prospective author late in the preparation of this volume. The topic will of course be treated in later volumes, although not predominantly in a historical manner. Otherwise, the emphasis in this volume is on the history of understanding interrelationships between modes of bacterial existence and the inanimate environment. These relationships were established long be fore multicellular, differentiated or ganisms appeared as potential microbial habitats, and their recognition and elucidation contributed greatly to the widened appreciation of bacterial di versity and the importance of these simpler creatures to the physiochemical conditions of the biosphere.

Published by the Metropolitan Museum of Art, 1000 Fifth Avenue, New York, NY 10028. The catalog (with a lengthy essay and scholarly paraphernalia) for an exhibition of a newly identified work by Caravaggio and other paintings by the artist or related to the musical theme. Annotation copyrighted by Book News, Inc., Portland, OR

Addressing the growing economic, political, and cultural presence of Asian states in the Arctic region, this timely book looks at how that presence is being evaluated and engaged with by Arctic states and their northern communities. A diverse range of authors addresses the question that underpins so much of this interest in Asian engagement with the northern latitudes: what do Asian countries want to gain from the Arctic?

In The Craft of a Good Scribe, Steve Vinson offers a comprehensive study of the Demotic Egyptian First Tale of Setne Khaemwas (Third Century BCE), the first to appear since 1900. "First Setne" is the most important extant Demotic literary text, and among the most important fictional compositions from any period of ancient Egypt. The tale, which is by turns lurid, tragic and ultimately comic, deals with Setne's theft of a magic book written by the god Thoth himself, and subsequently Setne's punishment through a hallucinatory encounter with the ghostly femme fatale Tabubue. Vinson provides a new textual edition and commentary, and explores the tale's cultural background, its modern reception, and approaches to its interpretation as a work of literature.

This clinical casebook presents a comprehensive review of common sleep problems in adolescents in a concise, easy-to-read format. Each chapter thoroughly addresses a unique sleep disorder in teenagers through illustrative cases, reviews of relevant literature, and pearls of wisdom for both the practicing sleep specialist and other practitioners involved in the care of adolescents. Early chapters address various sleep disorders in detail: parasomnias, narcolepsy, obstructive sleep apnea, and delayed sleep-wake phase disorder, providing clear treatment considerations. Later chapters address sleep when complicated by issues of major depression, PTSD, epilepsy, and Traumatic Brain Injury. In-depth discussions and differential diagnosis engage the reader, and offer a multitude of research-based and clinically guided recommendations for the evaluation and treatment of sleep disorders in the adolescent. An ideal, practical resource for clinicians at all levels, Sleep Disorders In Adolescents provides a valuable contribution to adolescent care.