Tracking Environmental Change Using Lake Sediments D 79111 Freiburg Screening of potential drugs from 9783642696978 Screening of potential drugs from medicinal plants and animals provides a promising strategy for the alleviation of the impact of these diseases AFPAC 2000 acronyms and abbreviations 441 Index 493 xiii PREFACE The explosive growth of paleolimnology over the past two decades has provided impetus for the publication of this series of monographs detailing the numerous advances and new techniques being applied to the interpretation of lake histories 401 Introduction Nitrogen in lakes: forms and distribution Nitrogen isotopes Nitrogen isotope studies in palaeolimnology: sampling and measurement Some examples Closing remarks Summary Acknowledgments References Glossary