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The Statistical Abstract of the United States, published since 1878, is the standard summary of statistics on the social, political, and economic organization of the United States. It is designed to serve as a convenient volume for statistical reference and as a guide to other statistical publications and sources. The latter function is served by the introductory text to each section, the source note appearing below each table, and Appendix I, which comprises the Guide to Sources of Statistics, the Guide to State Statistical Abstracts, and the Guide to Foreign Statistical Abstracts.
The genealogist trying to locate families, the surveyor or attorney researching old deeds, or the historian seeking data on land settlement will find Pennsylvania Land Records an indispensable aid. The land records of Pennsylvania are among the most complete in the nation, beginning in the 1680s. Pennsylvania Land Records not only catalogs, cross-references, and tells how to use the countless documents in the archive, but also takes readers through a concise history of settlement in the state. The guide explains how to use the many types of records, such as rent-rolls, ledgers of the receiver general's office, mortgage certificates, proof of settlement statements, and reports of the sale of town lots. In addition, the volume includes: cross-references to microfilm copies; maps of settlement; illustrations of typical documents; a glossary of technical terms; and numerous bibliographies on related topics.
Data on water quality and other environmental issues are being collected at an ever-increasing rate. In the past, however, the techniques used by scientists to interpret this data have not progressed as quickly. This is a book of modern statistical methods for analysis of practical problems in water quality and water resources.The last fifteen years have seen major advances in the fields of exploratory data analysis (EDA) and robust statistical methods. The 'real-life' characteristics of environmental data tend to drive analysis towards the use of these methods. These advances are presented in a practical and relevant format. Alternate methods are compared, highlighting the strengths and weaknesses of each as applied to environmental data. Techniques for trend analysis and dealing with water below the detection limit are topics covered, which are of great interest to consultants in water-quality and hydrology, scientists in state, provincial and federal water resources, and geological survey agencies.The practising water resources scientist will find the worked examples using actual field data from case studies of environmental problems, of real value. Exercises at the end of each chapter enable the mechanics of the methodological process to be fully understood, with data sets included on diskette for easy use. The result is a book that is both up-to-date and immediately relevant to ongoing work in the environmental and water sciences.